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Context of '10:47 a.m.-11:40 a.m. September 11, 2001: United Airlines Flight Reported as Missing'

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NASA’s KC-135 in parabolic flight.NASA’s KC-135 in parabolic flight. [Source: NASA]A special aircraft operated by NASA is in the air over western New York State at the time of the terrorist attacks and, at one point, a large aircraft, which those on board later learn is the hijacked Flight 93, flies less than 1,000 feet below it. [Space Center Roundup, 9/2002 pdf file] The plane, NASA 931, is a modified KC-135—a four-engine military aircraft similar to the Boeing 707. [National Aeronautics and Space Administration, 10/2000, pp. 28; National Aeronautics and Space Administration, 10/29/2004] It is used by NASA for reduced gravity research, and is known as the “Weightless Wonder” or sometimes the “Vomit Comet.” The aircraft creates weightless conditions for brief periods by flying up and down in large parabolic arcs. [NASAexplores, 1/30/2003] It is regularly operated from NASA’s Glenn Research Center in Cleveland, Ohio, next to Cleveland Hopkins International Airport, and usually flies four days a week. [National Aeronautics and Space Administration, 10/2000, pp. 140; National Journal's Technology Daily, 11/27/2002; National Aeronautics and Space Administration, 10/29/2004] A typical flight lasts two to three hours and consists of the plane flying 40 to 60 parabolas. [NASAexplores, 1/30/2003]
Scientists from Houston Conducting Microgravity Experiments - A team of scientists from NASA’s Johnson Space Center in Houston, Texas, has flown to Cleveland to conduct microgravity experiments on the KC-135. [Cleveland Free Times, 9/6/2006] Dominic Del Rosso, the test director on the plane, will later recall that the team is flying over western New York State when the terrorist attacks occur. During the routine mission, the KC-135 cruises back and forth along the New York shore of Lake Ontario, climbing and descending to create a freefall condition to simulate microgravity. Del Rosso will comment, “To think that this type of maneuver might ever seem threatening never crossed my mind until [September 11].” The plane’s crew members are notified at some point that a large plane is intersecting their flight path less than 1,000 feet below them, instead of the usual 2,000-foot minimum distance. They will later learn that this aircraft is the hijacked Flight 93, which crashes in Pennsylvania (see (10:06 a.m.) September 11, 2001). Del Rosso will recall, “After the unwanted flyby, we landed having no idea why or what was going on.” [Space Center Roundup, 9/2002 pdf file] The scientists are unable to return to Houston on this day, as scheduled, after the FAA orders all planes to land (see (9:45 a.m.) September 11, 2001), and so have to be put up in a hotel in Cleveland. [Cleveland Free Times, 9/6/2006]

Entity Tags: National Aeronautics and Space Administration, Dominic Del Rosso

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The hole caused by the Flight 11 crash.The hole caused by the Flight 11 crash. [Source: Reuters]Flight 11 slams into the WTC North Tower (Building 1). Hijackers Mohamed Atta Waleed Alshehri, Wail Alshehri, Abdulaziz Alomari, and Satam Al Suqami presumably are killed instantly, and many more in the tower will die over the next few hours. Seismic records pinpoint the crash at 26 seconds after 8:46 a.m. [CNN, 9/12/2001; New York Times, 9/12/2001; North American Aerospace Defense Command, 9/18/2001; USA Today, 12/20/2001; Federal Emergency Management Agency, 5/1/2002, pp. 1-10; New York Times, 5/26/2002; USA Today, 8/12/2002; Associated Press, 8/21/2002; Newsday, 9/10/2002] The NIST report states the crash time to be 8:46:30. [National Institute of Standards and Technology, 9/2005, pp. 19] The 9/11 Commission Report states the crash time to be 8:46:40. [9/11 Commission, 7/24/2004, pp. 7] Investigators believe the plane still has about 10,000 gallons of fuel (see 8:57 a.m. September 11, 2001). [New York Times, 5/26/2002] The plane strikes the 93rd through 99th floors in the 110-story building. No one above the crash line survives; approximately 1,360 people die. Below the crash line, approximately 72 die and more than 4,000 survive. Both towers are slightly less than half full at the time of the attack, with between 5,000 to 7,000 people in each tower. This number is lower than expected. Many office workers have not yet shown up to work, and tourists to the observation deck opening at 9:30 A.M. have yet to arrive. [USA Today, 12/20/2001; National Institute of Standards and Technology, 9/2005, pp. 20-22] The impact severs some columns on the north side of the North Tower. Each tower is designed as a “tube-in-tube” structure and the steel columns which support its weight are arranged around the perimeter and in the core. The plane, which weighs 283,600 lb and is traveling at an estimated speed of around 430 mph (see October 2002-October 2005), severs 35 of the building’s 236 perimeter columns and damages another two. The damage to the South Tower’s perimeter will be similar (see 9:03 a.m. September 11, 2001). [National Institute of Standards and Technology, 9/2005, pp. 5-9, 20, 22] The perimeter columns bear about half of the tower’s weight, so this damage reduces its ability to bear gravity loads by about 7.5 percent. [National Institute of Standards and Technology, 9/2005, pp. 6] The actual damage to the 47 core columns is not known, as there are no photographs or videos of it, but there will be much speculation about this after 9/11. It will be suggested that some parts of the aircraft may have damaged the core even after crashing through the exterior wall. According to the National Institute of Standards and Technology (NIST): “Moving at 500 mph, an engine broke any exterior column it hit. If the engine missed the floor slab, the majority of the engine core remained intact and had enough residual momentum to sever a core column upon direct impact.” [National Institute of Standards and Technology, 9/2005, pp. 107] According to NIST’s base case computer model, three of the core columns are severed and another ten suffer some damage. [National Institute of Standards & Technology, 9/2005, pp. 189 pdf file] If this is accurate, it means that the impact damage to the core reduces the Tower’s strength by another approximately 7.5 percent, meaning that the building loses about 15 percent of its strength in total. This damage will be cited after 9/11 by NIST and others researchers as an event contributing to the building’s collapse (see October 23, 2002 and October 19, 2004). In addition, some of the fireproofing on the steel columns and trusses may be dislodged. The original fireproofing on the fire floors was mostly Blazeshield DC/F, but some of the fireproofing on the flooring has recently been upgraded to Blazeshield II, which is about 20 percent denser and 20 percent more adhesive. [National Institute of Standards & Technology, 9/2005, pp. xxxvi, 83 pdf file] Photographs and videos of the towers will not show the state of fireproofing inside the buildings, but NIST will estimate the damage to it using a computer model. Its severe case model (see (October 2002-October 2005)) will predict that 43 of the 47 core columns are stripped of their fireproofing on one or more floors and that fireproofing is stripped from trusses covering 60,000 ft2 of floor area, the equivalent of about one and a half floors. NIST will say that the loss of fireproofing is a major cause of the collapse (see April 5, 2005), but only performs 15 tests on fireproofing samples (see October 26, 2005). [National Institute of Standards and Technology, 9/2005, pp. 23] According to NIST, more fireproofing is stripped from the South Tower (see 9:03 a.m. September 11, 2001).

Entity Tags: Mohamed Atta, National Institute of Standards and Technology, Satam Al Suqami, Waleed Alshehri, Abdulaziz Alomari, World Trade Center, Wail Alshehri

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The FAA’s Command Center in Herndon, Virginia, establishes a teleconference with FAA facilities in the New York area. These facilities are the New York Center, the New York Terminal Radar Approach Control, and the Eastern Regional Office. The participants in the teleconference jointly decide to divert all air traffic that would otherwise enter the New York area, either to land or to overfly. Linda Schuessler, the deputy director of system operations at the Command Center, will later describe, “They [New York area air traffic control personnel] would continue to work what they’d been working, but we wouldn’t give them any more.” The teleconference participants’ decision does not affect takeoffs from the New York area. After the second World Trade Center tower is hit at 9:03 a.m., the Command Center will expand this teleconference to include FAA headquarters and other agencies (see 9:06 a.m. and After September 11, 2001). [Aviation Week and Space Technology, 12/17/2001]

Entity Tags: New York Terminal Radar Approach Control, New York Air Route Traffic Control Center, Federal Aviation Administration, FAA Eastern Regional Office, Linda Schuessler

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

According to a statement by two high-level FAA officials, “Within minutes after the first aircraft hit the World Trade Center, the FAA immediately established several phone bridges [i.e., telephone conference calls] that included FAA field facilities, the FAA command center, FAA headquarters, [Defense Department], the Secret Service, and other government agencies.” The FAA shares “real-time information on the phone bridges about the unfolding events, including information about loss of communication with aircraft, loss of transponder signals, unauthorized changes in course, and other actions being taken by all the flights of interest, including Flight 77. Other parties on the phone bridges in turn shared information about actions they were taken.” The statement says, “The US Air Force liaison to the FAA immediately joined the FAA headquarters phone bridge and established contact with NORAD on a separate line.” [9/11 Commission, 5/23/2003] Another account says the phone bridges are “quickly established” by the Air Traffic Services Cell (ATSC). This is a small office at the FAA’s Herndon Command Center, which is staffed by three military officers at the time of the attacks (see (Between 9:04 a.m. and 9:25 a.m.) September 11, 2001). It serves as the center’s liaison with the military. According to Aviation Week and Space Technology, the phone bridges link “key players, such as NORAD’s command center, area defense sectors, key FAA personnel, airline operations, and the NMCC.” [Aviation Week and Space Technology, 6/10/2002; 9/11 Commission, 6/17/2004] According to an FAA transcript of employee conversations on 9/11, one of the phone bridges, between the FAA Command Center, the operations center at FAA headquarters, and air traffic control centers in Boston and New York, begins before Flight 11 hits the World Trade Center at 8:46 (see 8:46 a.m. September 11, 2001). [Federal Aviation Administration, 10/14/2003, pp. 3-10 pdf file] If these accounts are correct, it means someone at NORAD should learn about Flight 77 when it deviates from its course (see (8:54 a.m.) September 11, 2001). However, the 9/11 Commission will later claim that the FAA teleconference is established about 30 minutes later (see (9:20 a.m.) September 11, 2001). The Air Force liaison to the FAA will claim she only joins it after the Pentagon is hit (see (Shortly After 9:37 a.m.) September 11, 2001).

Entity Tags: US Secret Service, Federal Aviation Administration, Air Traffic Services Cell, US Department of Defense

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The US Air Force liaison to the FAA arrives at FAA headquarters in Washington, DC, but, according to her own later recollections, does not immediately join a teleconference that has been set up in response to the first plane hitting the World Trade Center. [9/11 Commission, 5/23/2003; US Department of Transportation, 8/31/2006 pdf file]
Military Liaisons at FAA Headquarters - Each of the four military services within the US Department of Defense (the Army, the Navy, the Air Force, and the Marine Corps) assigns an FAA liaison officer to represent its requirements to the director of air traffic. These four liaisons share office space on the fourth floor of FAA headquarters. [Federal Aviation Administration, 3/21/2002 pdf file] Colonel Sheryl Atkins is the Air Force liaison there. Air Force liaisons at the FAA regional offices all report to Atkins, and she reports to the Pentagon.
Atkins Arrives at FAA Headquarters - Atkins will later recall that she was on her way to work when the first plane hit the WTC at 8:46 a.m., and she arrives at FAA headquarters “probably five, 10 minutes after that.” Once there, she goes to her office, where everyone is gathered around the television. She will see the CNN coverage of the second plane hitting the WTC at 9:03 a.m., and then immediately begin “personnel accounting.” [9/11 Commission, 3/26/2004; US Department of Transportation, 8/31/2006 pdf file]
Atkins Does Not Join Teleconference - According to a 2003 statement provided by the FAA, the FAA established a teleconference with several other agencies minutes after the first WTC tower was hit (see (8:50 a.m.) September 11, 2001), and the Air Force liaison to the FAA (i.e. Atkins) “immediately” joined this. [9/11 Commission, 5/23/2003] However, Atkins will say she only joins this teleconference after 9:37 a.m., when the Pentagon attack occurs (see (Shortly After 9:37 a.m.) September 11, 2001). [9/11 Commission, 3/26/2004; US Department of Transportation, 8/31/2006 pdf file]
Not Responsible for Reporting Hijackings - Atkins will tell the 9/11 Commission that she is not responsible for being a channel from the FAA to the military for hijack and/or fighter escort protocols. She will explain that her office is “a liaison military administrative office,” and therefore, if she is notified of a hijacking, this does not represent “procedural military notification.” 9/11 Commission staff members will confirm “that there is no indication in the FAA handbook for special military procedures that [Atkins’s] office has a role in the notification to the military of a hijack, or the request to the military for fighter asset support.” Atkins will recall that, on this morning, “no one at the FAA” says to her that she should initiate “notification for a military response and/or coordination with the FAA response to the attacks.” Instead, she is “involved with military administrative coordinating and facilitating… and not with direct assessment or response to the attacks.” [9/11 Commission, 3/26/2004; 9/11 Commission, 4/19/2004]
No Other Military Liaisons Present - The three other military liaisons that share office space with Atkins at FAA headquarters are currently elsewhere, spread out around northern Virginia and Washington, DC. The Navy and Marine Corps liaisons will arrive at FAA headquarters at around 10:30 a.m.; the Army liaison will not arrive until the following day. [Federal Aviation Administration, 3/21/2002 pdf file]

Entity Tags: Sheryl Atkins, Federal Aviation Administration

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Flight 77 from Washington begins to go off course over southern Ohio, turning to the southwest. [Washington Post, 9/12/2001; Newsday, 9/23/2001; 9/11 Commission, 6/17/2004]

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Andrew Studdert.Andrew Studdert. [Source: Rental Equipment Register]United Airlines receives numerous reports about threats and other emergencies, which turn out to be incorrect. This is according to Andrew Studdert, United Airlines’ chief operating officer, who spends much of the morning at the airline’s System Operations Control center, near Chicago. [9/11 Commission, 11/20/2003 pdf file; 9/11 Commission, 1/27/2004] Two of the flights hijacked in the terrorist attacks—Flight 175 and Flight 93—are United Airlines aircraft. [CNN, 9/12/2001] Studdert will tell the 9/11 Commission that, additionally, throughout the morning “there is a torrent of reported bomb threats” received by the airline. He will add that “explosions are reported at two airports, and there are reports of other threats and other hijackings.” Studdert will refer to “various rumors” the airline has to deal with. One of these is a “call from someone alleging to be the spouse of a flight attendant onboard an inbound flight from Europe, saying that it had been hijacked.” United Airlines “chased down and sweated these rumors until all the airplanes were grounded.” Studdert will say that these reports “turn out to be misunderstandings or hoaxes.” However, he will add, “the presumed threats cannot be dismissed in the high uncertainty of the moment.” [9/11 Commission, 11/20/2003 pdf file; 9/11 Commission, 1/27/2004] United Airlines also temporarily loses communication with several of its planes this morning (see (10:00 a.m.) September 11, 2001); numerous other United Airlines aircraft are temporarily reported as missing (see 10:47 a.m.-11:40 a.m. September 11, 2001 and 10:55 a.m.-11:15 a.m. September 11, 2001); and one United Airlines plane reportedly transmits a distress signal while flying over the Atlantic Ocean (see 11:18 a.m.-12:27 p.m. September 11, 2001). [Federal Aviation Administration, 9/11/2001; Federal Aviation Administration, 9/11/2001; Federal Aviation Administration, 3/21/2002, pp. S-26 pdf file; 9/11 Commission, 1/27/2004]

Entity Tags: Andrew P. Studdert, United Airlines

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Colin Scoggins, the military liaison at the FAA’s Boston Center, learns from an FAA teleconference that there is a second hijacked plane over the US. He has previously called the FAA’s New York Center and was told, “We’re working a hijack,” but mistakenly thought the controller was referring to Flight 11 (see (Between 8:40 a.m. and 8:54 a.m.) September 11, 2001). According to author Lynn Spencer, Scoggins now hears on the FAA headquarters’ hijack teleconference of the second hijacked airliner, Flight 175. [Spencer, 2008, pp. 48-49 and 82] Spencer’s account is consistent with a May 2003 statement by the FAA, according to which the FAA established its teleconference “[w]ithin minutes after the first aircraft hit the World Trade Center” (see (8:50 a.m.) September 11, 2001). [9/11 Commission, 5/23/2003] But the 9/11 Commission will claim that the FAA headquarters’ hijacking teleconference is only established at “about 9:20” (see (9:20 a.m.) September 11, 2001). [9/11 Commission, 7/24/2004, pp. 36] According to Spencer, Scoggins assumes that NORAD’s Northeast Air Defense Sector (NEADS) is also on the FAA teleconference and is receiving the same information that he is about the second hijacking. However, the “FAA headquarters’ teleconference is between air traffic control facilities, the [FAA] Command Center, the Defense Department, and several other agencies; NORAD is not looped in.” [Spencer, 2008, pp. 82] Although the FAA will claim that the “Air Force liaison to the FAA immediately joined the FAA headquarters [teleconference] and established contact with NORAD on a separate line,” the Air Force liaison will subsequently claim she only joins the teleconference after 9:37 a.m., when the Pentagon is hit (see (Shortly After 9:37 a.m.) September 11, 2001). [9/11 Commission, 5/23/2003; US Department of Transportation, 8/31/2006 pdf file] Even though Scoggins assumes NEADS is already aware of the information, he will subsequently call it with the news of the second hijacking (see (9:02 a.m.-9:07 a.m.) September 11, 2001). [Spencer, 2008, pp. 82]

Entity Tags: Colin Scoggins, Federal Aviation Administration, Northeast Air Defense Sector

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

At the FAA’s Command Center in Herndon, Virginia, manager John White learns of the communication apparently made by a hijacker on Flight 11, stating “We have some planes” (see 8:24 a.m. September 11, 2001), and quickly notifies the national operations manager of this. Terry Biggio, the operations manager at the FAA’s Boston Center, is relaying all the information he has about Flight 11 to the Command Center’s teleconference. In the conference room at the Command Center, White is listening in. [Spencer, 2008, pp. 79-80] Because the air traffic controller monitoring Flight 11 had not understood the “We have some planes” hijacker communication, the Boston Center’s quality assurance specialist had been instructed to “pull the tape” of the transmission, listen to it carefully, and then report back. [9/11 Commission, 7/24/2004, pp. 19] Having learned that the specialist has deciphered the transmission, Biggio now relays the details of it over the teleconference. Seconds later, those at the Command Center see Flight 175 crashing into the South Tower of the World Trade live on CNN. White promptly dispatches a manager to pass on the details of the transmission to Ben Sliney, the national operations manager at the Command Center (see 9:06 a.m. and After September 11, 2001). [Spencer, 2008, pp. 79-80] The FAA’s New England regional office also learns of the “We have some planes” communication at this time (see 9:03 a.m. September 11, 2001). [9/11 Commission, 8/26/2004, pp. 23]

Entity Tags: Federal Aviation Administration, Ben Sliney, John White, Boston Air Route Traffic Control Center, Terry Biggio

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Brian Meenan.Brian Meenan. [Source: US Air Force]The Air Traffic Services Cell (ATSC)—a small office at the FAA’s Command Center in Herndon, Virginia, manned by military reservists—is activated.
Officers Learn of Attacks - Three officers are currently on duty in the ATSC: Colonel John Czabaranek, Lieutenant Colonel Michael-Anne Cherry, and Major Kevin Bridges. Colonel Brian Meenan, the director of the cell, is not in the ATSC at this time, and so Czabaranek, his deputy, is currently in charge. Czabaranek, Cherry, and Bridges learned of the first attack in New York at around 8:55 a.m. when another employee at the Command Center told them to turn on CNN, because an aircraft had crashed into the World Trade Center. The three officers initially thought the crash was an accident, but realized it was not when they saw the second aircraft hitting the WTC at 9:03 a.m. They then established contact with the Air Force Ops Center.
Cell Activated, Though Timing Unclear - The ATSC is activated, although the exact time this happens at is unclear. According to Aviation Week and Space Technology magazine, the cell “quickly became a key communications node during the military’s response to [the] terrorist attacks.” [US Air Force, 9/11/2001; Aviation Week and Space Technology, 6/10/2002] Jeff Griffith, the FAA’s deputy director of air traffic control, will tell the 9/11 Commission that “the military officers assigned to the Air Traffic Services Cell became immediately involved in coordinating FAA… Command Center actions with military elements.” [9/11 Commission, 6/9/2004 pdf file] According to a chronology of the ATSC’s actions on this day, calls to activate the cell are apparently made at unspecified times following the second attack in New York and before the FAA’s ground stop (at 9:26 a.m.). These calls are made by a Lieutenant Colonel Mahoney and a Colonel Litzenberger from the Air Force Ops Center. Apparently shortly after the calls are made, Czabaranek contacts NORAD to let it know that the ATSC is “up and running.” [US Air Force, 9/11/2001]
Military Cell Aided by Recently-Installed Hardware - The ATSC’s response to the terrorist attacks benefits from the fact that, six weeks earlier, the cell had a secure terminal to access the SIPRNET—the military’s classified version of the Internet—installed, along with other hardware, which significantly enhances the movement of vital information. According to Meenan, because the cell has the SIPRNET terminal, “we could immediately look at NORAD and [Defense Department] plans as they evolved; filter, package, and format them, then walk out to the [FAA] national operations manager—who had control of the entire national airspace system—and give him current visibility into… fighter, tanker, and support aircraft activities. It cut down our response time tremendously.” [Aviation Week and Space Technology, 6/10/2002]
ATSC Is a Bridge between FAA and Military - The ATSC is a “part-time military outfit, staffed by part-time Air Force Reserve members” who “provide a bridge between the civilian and military worlds when air traffic issues arise,” according to the Air Force Times. For example, “During a crisis, the armed forces suddenly may need to inject a large number of military airplanes into a sky that typically handles only a few hundred.” [Air Force Times, 2000] However, Czabaranek will tell the 9/11 Commission that the ATSC is “not part of [the] FAA/NORAD hijack notification process.” [9/11 Commission, 4/14/2004]
Presence of ATSC Officers a 'Fluke' - According to Aviation Week and Space Technology, the presence of the three ATSC officers at the FAA Command Center this morning is a “fluke,” since the Pentagon staffs the military cell “only three days per month for refresher training, but September 11 happened to be one of those days.” [Aviation Week and Space Technology, 12/17/2001]
Cell Handles Aircraft after Airspace Shut Down - Later in the day, after the national airspace has been shut down (see (9:45 a.m.) September 11, 2001), the ATSC personnel will coordinate actions relating to military and other special flights that are permitted to fly. [9/11 Commission, 2003] They will be responsible for validating the requests they receive for the movement of aircraft, and issuing permissions in response to those requests. [Federal Aviation Administration, 3/21/2002 pdf file]

Entity Tags: Air Traffic Services Cell, US Department of the Air Force, North American Aerospace Defense Command, Federal Aviation Administration, Kevin Bridges, Jeff Griffith, Michael-Anne Cherry, Brian Meenan, John Czabaranek

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Bruce Barrett.Bruce Barrett. [Source: H. Darr Beiser / USA Today]The FAA’s New York Center declares “air traffic control zero” (“ATC zero”), which means that all air traffic is prevented from departing from, arriving at, or traveling through the center’s airspace until further notice. [USA Today, 8/12/2002; Freni, 2003, pp. 18; 9/11 Commission, 8/26/2004, pp. 24] According to author Lynn Spencer: “ATC zero is designed for situations in which an air traffic facility is completely incapable of handling aircraft due to a massive computer failure, power outage, or even a large enough weather system. The declaration pushes all their aircraft onto neighboring sectors, and any new airplanes from adjacent sectors are turned back, at the sector boundaries if necessary.” [Spencer, 2008, pp. 68] The decision to declare ATC zero is made after the second plane hits the World Trade Center, confirming that the US is under terrorist attack. There are currently hundreds of aircraft in the skies around New York and the western Atlantic that the New York Center is responsible for. [Associated Press, 8/12/2002] Bruce Barrett, a senior manager at the New York Center, announces, “We’re declaring ATC zero,” and Mike McCormick, the center’s air traffic control manager, approves the order. Several of the managers there then start informing air traffic controllers of the decision.
Unprecedented Order - USA Today will report that this decision is unprecedented: “Controllers had gone to ‘air traffic control zero’ before, but only when their radar shut down or their radio transmitters went silent. The planes kept flying then, and controllers in other centers guided them. This time, ATC zero means something far more drastic. It means emptying the skies—something that has never been attempted. And not just the skies over Manhattan. Controllers must clear the air from southern New England to Maryland, from Long Island to central Pennsylvania—every mile of the region they control.… Controllers from Cleveland to Corpus Christi must reroute jets headed to the region and put some in holding patterns.”
Accounts Conflict over Whether Center Seeks Permission - According to USA Today, McCormick and Barrett declare ATC zero without first seeking permission from higher-ups, because a “call to Washington could take minutes, and they aren’t sure they have that long.” [USA Today, 8/12/2002] But according to Lynn Spencer, a New York Center supervisor has already requested ATC zero in a call to the FAA’s Herndon Command Center. Ben Sliney, the Command Center’s national operations manager, assured the supervisor, “You take care of matters in your center and we will provide all the assistance necessary by stopping any further aircraft from entering your airspace.” [Spencer, 2008, pp. 68]

Entity Tags: Ben Sliney, New York Air Route Traffic Control Center, Lynn Spencer, Bruce Barrett, Mike McCormick

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

At the FAA’s Herndon Command Center, national operations manager Ben Sliney responds to the second plane hitting the World Trade Center and orders a “first-tier ground stop” to prevent aircraft from departing, arriving at, or flying through the airspace of the FAA’s New York Center. Like many others at the Command Center, Sliney has just seen Flight 175 crashing into the South Tower of the WTC live on CNN. A manager at the center then reports to him the news just received over the Command Center’s teleconference, about the sinister radio transmissions that have been deciphered by the Boston Center, stating “We have some planes” (see 9:03 a.m. September 11, 2001). According to author Lynn Spencer, “The words take on a sickening significance” to Sliney “after what he has just observed.”
Sliney Orders 'First-Tier Ground Stop' - Sliney orders across the room, “Give me a first-tier ground stop!” According to Spencer, “The order stops all aircraft departing, arriving, or flying through New York Center’s airspace, effectively closing down the nation’s busiest skies.” At 9:06 a.m., an advisory is sent out to every air traffic control facility in the nation, and the skies above New York are now officially closed. Numerous flights that are in the air or preparing to take off are given “holding instructions.” Meanwhile, the large screen at the front of the room in the Command Center displays the footage of Flight 175 hitting the WTC as it is shown repeatedly on CNN. According to Spencer: “[I]t becomes sickeningly obvious to all watching that the plane was a large commercial airliner. And it was no accident.” [AOPA Pilot, 11/2001; Spencer, 2008, pp. 80-81] Around this same time, the FAA’s New York Center takes action similar to that of the Command Center, declaring “air traffic control zero,” which prevents all air traffic from departing, arriving at, or traveling through its airspace (see 9:05 a.m. September 11, 2001). [9/11 Commission, 8/26/2004, pp. 24] And at around 9:25 a.m., the Command Center will order a “nationwide ground stop,” which prevents any aircraft from taking off in the entire United States (see (9:26 a.m.) September 11, 2001). [9/11 Commission, 8/26/2004, pp. 33]
Sliney Expands Teleconference - Also in response to the second WTC crash, Sliney decides that he needs to expand the Command Center’s teleconference (see (Between 8:48 a.m. and 9:00 a.m.) September 11, 2001) so as to include the secretary of transportation. [Spencer, 2008, pp. 81] It is expanded to include the secretary of transportation’s office, FAA headquarters, and other agencies. [Aviation Week and Space Technology, 12/17/2001] It is unclear whether Transportation Secretary Norman Mineta participates himself, as he is told to go to the White House around this time, and subsequently heads there (see (9:15 a.m.) September 11, 2001). [9/11 Commission, 5/23/2003]
Military Liaison Unable to Help - Sliney also seeks out the military liaison at the Command Center to get more information about what is going on. [Spencer, 2008, pp. 81] Presumably this officer is one of the three members of the Air Traffic Services Cell (ATSC) there (see (Between 9:04 a.m. and 9:25 a.m.) September 11, 2001). [Aviation Week and Space Technology, 12/17/2001; Aviation Week and Space Technology, 6/10/2002] But, according to Spencer, it is “clear that the lieutenant colonel’s job has nothing to do with NORAD or the air defense interceptors. He is military, but his job duties at the Command Center are focused on military airspace usage. He has no place in the military chain of command that is relevant this morning.” Sliney therefore “can only assume that people much higher up than both of them are dealing with the military response. The fighters must be on their way.” [Spencer, 2008, pp. 81]

Entity Tags: Ben Sliney, Norman Mineta, Federal Aviation Administration, Air Traffic Services Cell

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The air traffic control tower at Reagan National Airport.The air traffic control tower at Reagan National Airport. [Source: Metropolitan Washington Airports Authority]Air traffic controllers at Washington’s Reagan National Airport are instructed to start securing the airspace around Washington, DC. In the tower at Reagan Airport, the controllers heard about the two aircraft hitting the World Trade Center. They then received the ground stop order for all flights going to or through New York. [Spencer, 2008, pp. 145] (This order was issued at 9:06 a.m.—see 9:06 a.m. and After September 11, 2001. [AOPA Pilot, 11/2001] ) Shortly afterwards, they receive the instruction to start securing the airspace around the capital. They are told to turn away all non-airliner aircraft, such as private planes, as these are considered high risk. Who it is that issues this instruction is unstated, but presumably, like the New York airspace ground stop, it comes from the FAA’s Herndon Command Center. [Spencer, 2008, pp. 145]

Entity Tags: Federal Aviation Administration, Ronald Reagan Washington National Airport

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Transportation Secretary Norman Mineta, who saw the second plane hitting the WTC on television while at the Department of Transportation, had been called to the White House (see (8:48 a.m.-9:05 a.m.) September 11, 2001). When he arrives there, as he later recalls, he sees “People… coming out of the White House, pouring out of the Executive Office Building, running over towards Lafayette Park.” As he enters the White House, Mineta is told he has to be briefed by counterterrorism “tsar” Richard Clarke. He goes to the Situation Room where Clarke talks to him for four or five minutes, briefly informing him of what is going on. Clarke instructs him, “You have to get over to the Presidential Emergency Operation Center to be with the vice president.” The Presidential Emergency Operations Center (PEOC) is the bunker located below the White House. As Mineta does not know where it is, a Secret Service agent leads him to it. He will arrive there around 9:20-9:27, according to his own recollections (see (Between 9:20 a.m. and 9:27 a.m.) September 11, 2001). [Daily Californian, 3/18/2002; MSNBC, 9/11/2002; 9/11 Commission, 5/23/2003; Academy of Achievement, 6/3/2006]

Entity Tags: Norman Mineta, Richard A. Clarke

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The FAA sets up a hijacking teleconference with several agencies, including the Defense Department. This is almost one hour after the FAA’s Boston flight control began notifying the chain of command (see 8:25 a.m. September 11, 2001) and notified other flight control centers about the first hijacking at 8:25 a.m. (see 8:25 a.m. September 11, 2001). According to the Acting FAA Deputy Administrator Monte Belger, this teleconference (called the “hijack net”) is “the fundamental primary source of information between the FAA, [Defense Department], FBI, Secret Service, and… other agencies.” Yet even after the delay in setting it up, FAA and Defense Department participants later claim it plays no role in coordinating the response to the hijackings. The 9/11 Commission says, “The NMCC [National Military Command Center inside the Pentagon] officer who participated told us that the call was monitored only periodically because the information was sporadic, it was of little value, and there were other important tasks. The FAA manager of the teleconference also remembered that the military participated only briefly before the Pentagon was hit.” [9/11 Commission, 6/17/2004; 9/11 Commission, 7/24/2004, pp. 36] According to a statement provided by the FAA to the 9/11 Commission in 2003, this teleconference began significantly earlier—“[w]ithin minutes after the first aircraft hit the World Trade Center” (see (8:50 a.m.) September 11, 2001). [9/11 Commission, 5/23/2003]

Entity Tags: Federal Aviation Administration, Monte Belger, US Department of Defense, 9/11 Commission

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Managers from American Airlines and United Airlines are added by the FAA to a teleconference, but they receive no guidance from top government officials on what to do. According to author Lynn Spencer, at some point after the second aircraft hit the World Trade Center, the executives from the two airlines are “quickly on the phone to FAA headquarters and the FAA Command Center.” They are brought into “a conference call that has now been set up with Secretary of Transportation Norman Mineta and Vice President Dick Cheney at the White House. The airline executives inform the secretary that they are each dealing with additional aircraft that they are unable to contact. They seek guidance, but there is none.… The nation is under attack, but there is no plan in place, and no guidance is forthcoming from the top as the crisis escalates.” [Spencer, 2008, pp. 109] The time when the airline executives join the teleconference is unclear. In Spencer’s account, she places it after United Airlines dispatchers have warned their aircraft to secure their cockpits (see (Shortly After 9:21 a.m.) September 11, 2001), which would mean some time after 9:21. [9/11 Commission, 8/26/2004, pp. 37; Spencer, 2008, pp. 109] But Spencer also says that, when the executives join the conference, the “president is still reading to children in a Florida school room” (see (9:08 a.m.-9:13 a.m.) September 11, 2001), which would be roughly between 9:05 and 9:15. [9/11 Commission, 7/24/2004, pp. 38-39; Spencer, 2008, pp. 109] If Norman Mineta is already participating in the teleconference when the airline executives join it, the time would have to be after around 9:20, which is when Mineta later says he arrived at the Presidential Emergency Operations Center (PEOC) below the White House (see (Between 9:20 a.m. and 9:27 a.m.) September 11, 2001). [9/11 Commission, 5/23/2003] And Cheney, who Spencer also says is participating in the teleconference when the executives join it, arrives at the PEOC as late as 9:58, according to the 9/11 Commission, although other accounts indicate he arrives there much earlier than this (see (Shortly After 9:03 a.m.) September 11, 2001). [ABC News, 9/14/2002; 9/11 Commission, 7/24/2004, pp. 40] According to the Wall Street Journal, American Airlines president Don Carty and United Airlines CEO Jim Goodwin are talking on the phone with Mineta (presumably over the conference call) about five minutes before the FAA shuts down all US airspace (see (9:45 a.m.) September 11, 2001), which would mean they are participating in the teleconference by around 9:40 a.m. [US Congress. House. Committee On Transportation And Infrastructure, 9/21/2001; Wall Street Journal, 10/15/2001]

Entity Tags: Federal Aviation Administration, Don Carty, United Airlines, Norman Mineta, Richard (“Dick”) Cheney, American Airlines, Jim Goodwin

Timeline Tags: Complete 911 Timeline, 9/11 Timeline


FAA Administrator Jane Garvey.
FAA Administrator Jane Garvey. [Source: FAA]Time magazine later reports that Jane Garvey, head of the FAA, “almost certainly after getting an okay from the White House, initiate[s] a national ground stop, which forbids takeoffs and requires planes in the air to get down as soon as is reasonable. The order, which has never been implemented since flying was invented in 1903, applie[s] to virtually every single kind of machine that can takeoff—civilian, military, or law enforcement.” Military and law enforcement flights are allowed to resume at 10:31 a.m. (see 10:31 a.m. September 11, 2001) A limited number of military flights—the FAA will not reveal details—are allowed to fly during this ban. [Time, 9/14/2001] Garvey later calls it “a national ground stop… that prevented any aircraft from taking off.” [US Congress. House. Committee On Transportation And Infrastructure, 9/21/2001] Transportation Secretary Norman Mineta later says he was the one to give the order: “As soon as I was aware of the nature and scale of the attack, I called from the White House to order the air traffic system to land all aircraft, immediately and without exception.” [US Congress. Senate. Committee on Commerce, Science and Transportation, 9/20/2001] According to Mineta, “At approximately 9:45… I gave the FAA the final order for all civil aircraft to land at the nearest airport as soon as possible.” [9/11 Commission, 5/23/2003] At the time, 4,452 planes are flying in the continental US. A later account states that Ben Sliney, the FAA’s National Operations Manager, makes the decision without consulting his superiors, like Jane Garvey, first. It would be remarkable if Sliney was the one to make the decision, because 9/11 is Sliney’s first day on the job as National Operations Manager, “the chess master of the air traffic system.” [USA Today, 8/12/2002] When he accepted the job a couple of months earlier, he had asked, “What is the limit of my authority?” The man who had promoted him replied, “Unlimited.” [USA Today, 8/13/2002] Yet another account, by Linda Schuessler, manager of tactical operations at the FAA Command Center where Sliney was located, says, “… it was done collaboratively… All these decisions were corporate decisions. It wasn’t one person who said, ‘Yes, this has got to get done.’” [Aviation Week and Space Technology, 12/17/2001] About 500 planes land in the next 20 minutes, and then much more urgent orders to land are issued at 9:45 a.m. (see (9:45 a.m.) September 11, 2001). [Time, 9/14/2001; US Congress. House. Committee On Transportation And Infrastructure, 9/21/2001; Newsday, 9/23/2001; Aviation Week and Space Technology, 6/3/2002; USA Today, 8/12/2002; USA Today, 8/12/2002; Associated Press, 8/21/2002; Newsday, 9/10/2002]

Entity Tags: Jane Garvey, Ben Sliney, Norman Mineta, Federal Aviation Administration, Linda Schuessler

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The National Miilitary Command Center, inside the Pentagon.The National Miilitary Command Center, inside the Pentagon. [Source: US Department of Defense]The National Military Command Center (NMCC) at the Pentagon finally commences and runs a “significant event conference” in response to the ongoing crisis, 26 minutes after the second plane hit the World Trade Center and officers in the NMCC realized the US was under terrorist attack. [9/11 Commission, 6/17/2004 pdf file; 9/11 Commission, 7/24/2004, pp. 37; American Forces Press Service, 9/7/2006]
NMCC Directors Decided to Establish Conference - After those in the NMCC saw Flight 175 hitting the WTC live on television at 9:03 a.m. (see 9:03 a.m. September 11, 2001), Captain Charles Leidig, the acting deputy director for operations (DDO) in the center throughout the attacks, and Commander Pat Gardner, the assistant DDO, talked about the need to convene a significant event conference so there could be a discussion of what actions were to be taken in response. The DDO and the assistant DDO are the two officers responsible for deciding what type of conference the NMCC should convene, and when it should do so. Because there is no specific procedure for dealing with terrorist attacks, Leidig and Gardner decided a significant event conference would most suit their needs, because it would have the flexibility of allowing more people to be added in as required. They also discussed who would need to be on this conference. [9/11 Commission, 4/29/2004 pdf file] But Major Charles Chambers, who is currently on duty in the NMCC, will give a slightly different account. According to Chambers, Staff Sergeant Val Harrison had a phone in her hand and said NORAD was asking for a significant event conference. Leidig had agreed, and so Harrison started establishing the conference.
Conference Begins with Recap of Situation - According to Chambers, “The computer does a mass dialing to connect to those command centers that are always included” in an NMCC conference call, but Harrison also had to manually call the civilian agencies that were going to be included in the conference, such as the FAA, the FBI, and the Federal Emergency Management Agency (FEMA). [US Department of Defense, 9/2001] The conference then begins at 9:29 a.m. with a brief recap: Two aircraft have hit the WTC, there is a confirmed hijacking of Flight 11, and fighter jets have been scrambled from Otis Air National Guard Base in Massachusetts (see 8:46 a.m. September 11, 2001). The FAA is asked to provide an update, but its line is silent as the agency has not yet been added to the call (see (9:29 a.m.-12:00 p.m.) September 11, 2001). A minute later, Leidig states that it has just been confirmed that Flight 11 is still airborne and is heading toward Washington, DC. (This incorrect information apparently arose minutes earlier during a conference call between FAA centers (see 9:21 a.m. September 11, 2001).) [9/11 Commission, 7/24/2004, pp. 37] NMCC conference calls are moderated by the DDO. [9/11 Commission, 7/21/2003 pdf file] Leidig will tell the 9/11 Commission that they are conducted over “a special phone circuit, and it’s classified to be able to pass information, relay information between very senior leadership all the way over to the White House.” [9/11 Commission, 6/17/2004]
NMCC Struggled to Convene Conference - Some officers currently on duty in the NMCC will later complain about circumstances that delayed the establishing of the significant event conference. Chambers will recall that the conference took “much longer than expected to bring up.” [US Department of Defense, 9/2001] Gardner will tell the 9/11 Commission that the NMCC had been “struggling to build the conference,” which “didn’t get off as quickly as hoped.” [9/11 Commission, 5/5/2004] He will describe his “frustration that it wasn’t brought up more quickly.” [9/11 Commission, 5/12/2004]
Other Conference and Connection Problems Delayed Call - Preparations for the conference were disrupted as a result of the CIA convening a National Operations and Intelligence Watch Officer Network (NOIWON) conference call between government agencies in the Washington area, reportedly at sometime between 9:16 a.m. and 9:25 a.m. (see (Between 9:16 a.m. and 9:25 a.m.) September 11, 2001). According to a 9/11 Commission memorandum, the NMCC had “abandoned its attempt to convene a [significant event conference] so its watch officers could participate in the NOIWON conference.” [Federal Aviation Administration, 9/11/2001; Federal Aviation Administration, 9/11/2001; 9/11 Commission, 7/21/2003 pdf file] Another factor that slowed attempts to convene the significant event conference was a problem with connecting some agencies to it. According to Chambers, “A couple of the civil agencies couldn’t be reached and others kept dropping off moments after connecting.” He will recall, “We finally decided to proceed without those agencies that were having phone problems.” [US Department of Defense, 9/2001] Leidig had announced that the NMCC would have to start without those agencies and add them to the conference later on. [9/11 Commission, 5/12/2004]
Call Ends after Five Minutes - The significant event conference ends after only a few minutes, following a recommendation by NORAD that it be reconvened as an “air threat conference.” It is brought to an end at around 9:34 a.m., and will resume as an air threat conference at 9:37 a.m. (see 9:37 a.m.-9:39 a.m. September 11, 2001). [9/11 Commission, 4/29/2004 pdf file; 9/11 Commission, 7/24/2004, pp. 37]

Entity Tags: Charles Leidig, Federal Aviation Administration, Val Harrison, Patrick Gardner, Charles Chambers, North American Aerospace Defense Command, National Military Command Center

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

According to the 9/11 Commission, word of Flight 93’s hijacking reaches FAA headquarters. By this time, headquarters has established an open line of communication with the FAA Command Center at Herndon, Virginia. It had instructed the center to poll all flight control centers about suspect aircraft. So, at this time, the Command Center passes on Cleveland’s message: “United 93 may have a bomb on board.” The FAA headquarters apparently does not forward this information to the military, despite having the responsibility for doing so. Ben Sliney, the FAA’s national operations manager at its Herndon Command Center, will later recount, “I do know that all the information was being relayed to headquarters and, at least as far as we were concerned, it should have been. We thought it had been given to the military at each juncture.” The Command Center continually updates FAA headquarters on Flight 93 until it crashes. [9/11 Commission, 6/17/2004; CBC, 9/12/2006]

Entity Tags: Federal Aviation Administration, Ben Sliney

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Military officers at the FAA’s Command Center are informed of the hijacking of Flight 93, according to the FAA’s National Operations Manager Ben Sliney. If such notification is given, it is presumably shortly after the Command Center learns of the hijacking (see 9:34 a.m. September 11, 2001). Sliney will later tell the 9/11 Commission: “Available to us at the Command Center of course is the military cell, which was our liaison with the military services. They were present at all of the events that occurred on 9/11.” He will add, “The normal protocols for the events that were transpiring then—that is to say hijacked aircraft, which requires a notification to NORAD—those, at least I was given to understand, were made promptly—the notifications on each hijack.” The FAA’s acting Deputy Administrator Monte Belger will add: “[T]here were military people on duty at the FAA Command Center, as Mr. Sliney said. They were participating in what was going on. There were military people in the FAA’s Air Traffic Organization in a situation room. They were participating in what was going on.” [9/11 Commission, 6/17/2004] If the cell is notified, it is unclear what, if anything, the military liaison officers—Colonel John Czabaranek, Lieutenant Colonel Michael-Anne Cherry, and Major Kevin Bridges (see (Between 9:04 a.m. and 9:25 a.m.) September 11, 2001)—at the Command Center do with the information about Flight 93’s hijacking. The 9/11 Commission will say that the first notification to the military about Flight 93 comes at 10:07 a.m. (see 10:05 a.m.-10:08 a.m. September 11, 2001).

Entity Tags: Monte Belger, Kevin Bridges, John Czabaranek, Ben Sliney, Michael-Anne Cherry

Timeline Tags: Complete 911 Timeline

General John Keane, vice chief of staff of the Army, talks on the phone with Major General Peter Chiarelli, the Army’s director of operations, readiness, and mobilization, about a suspicious plane that is approaching Washington, DC, and the two men discuss evacuating buildings in the capital, including the Pentagon. Keane called Chiarelli from his office at the Pentagon after he learned a plane had crashed into the World Trade Center and instructed him to bring the Army Operations Center (AOC) at the Pentagon up to full manning (see (Between 8:49 a.m. and 9:02 a.m.) September 11, 2001).
Officer Is Monitoring FAA Communications - Sometime after the second hijacked plane crashed into the WTC (see 9:03 a.m. September 11, 2001), Chiarelli, who is now in the AOC himself, calls Keane to confirm that the operations center is fully manned. He also says he is monitoring FAA communications and all planes are being grounded, Keane will later recall. [Fordham News, 9/10/2016; Weekly Standard, 9/11/2016] (However, the FAA will only order its facilities to instruct aircraft to land at the nearest airport at around 9:45 a.m., which is later than this conversation occurs (see (9:45 a.m.) September 11, 2001). [US Congress. House. Committee On Transportation And Infrastructure, 9/21/2001; 9/11 Commission, 7/24/2004, pp. 29] )
Officer Was Told about an Aircraft Approaching Washington - Before Chiarelli left his office and went to the AOC, an intelligence analyst told him additional aircraft had been hijacked and one of them was thought to be heading toward Washington. An intelligence officer told him about this aircraft again after he reached the AOC (see (Shortly Before 9:37 a.m.) September 11, 2001). [US Army Center of Military History, 2/5/2002; Rossow, 2003, pp. 65-66] Presumably based, at least partly, on what these intelligence officers said, Chiarelli tells Keane about the suspicious aircraft, apparently Flight 77, which is now in the vicinity of Washington. [Fox News, 9/12/2011]
Officers Discuss Evacuating Buildings in Washington - He says, “There’s an airplane that has come up from I-95 south towards Washington, DC, and it turned east and went back down, and they’re tracking it.” He adds: “I think this airplane was out in Ohio someplace and it turned around (see (8:54 a.m.) September 11, 2001). It’s probably where they [i.e. hijackers] took charge of it and [air traffic controllers] haven’t been able to get a hold of it.” The two men conclude that the suspicious aircraft is heading for a building in the capital. Keane asks Chiarelli, “Well, what’s the plan to evacuate buildings in Washington?” Chiarelli replies, “I’ve already asked that question.” Keane then asks: “Well, what’s the plan to evacuate this building [i.e. the Pentagon]? Why isn’t it being evacuated?” What, if anything, Chiarelli says in response is unstated. [Weekly Standard, 9/11/2016] Keane and Chiarelli will still be holding this conversation at 9:37 a.m., when the Pentagon is hit (see 9:37 a.m. September 11, 2001), and will continue it after the attack occurs (see (Shortly After 9:37 a.m.) September 11, 2001). [Fordham News, 9/10/2016]

Entity Tags: John Keane, Peter W. Chiarelli

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The National Military Command Center (NMCC) at the Pentagon commences an “air threat conference” at 9:37 a.m. in response to the terrorist attacks, which will last for more than eight hours and have numerous high-level government and military officials participating at various times.
NORAD Reports Two More Hijackings - Captain Charles Leidig opens the call at 9:39 a.m. [9/11 Commission, 7/24/2004, pp. 37-38] As the acting deputy director for operations (DDO) in the NMCC during the attacks, Leidig is responsible for moderating the air threat conference and generating a military response to the crisis. [9/11 Commission, 4/29/2004 pdf file] He begins the call saying: “An air attack against North America may be in progress. NORAD, what’s the situation?” NORAD says it has conflicting reports, and its latest information is of “a possible hijacked aircraft taking off out of JFK [International Airport in New York], en route to Washington, DC.” [9/11 Commission, 7/24/2004, pp. 38] NORAD says the FAA has also passed it information about a second additional hijacking. Major Charles Chambers, who is currently on duty in the NMCC, will later recall, “This was probably a communications mix-up, but we all thought for a while that there were a total of five hijackings.” [US Department of Defense, 9/2001]
NMCC Reports Pentagon Attack - The NMCC reports that there has been a crash into the mall side of the Pentagon and requests that the secretary of defense be added to the conference. (However, despite being in the Pentagon when it is hit, Defense Secretary Donald Rumsfeld will not enter the NMCC and join the air threat conference until around 10:30 a.m. (see (10:30 a.m.) September 11, 2001).) [9/11 Commission, 7/24/2004, pp. 38] The air threat conference is broadcast over a loudspeaker inside the NMCC. [US News and World Report, 8/31/2003] According to Chambers, “Questions were flying left and right on the conference, and trying to keep things straight was very difficult.” [US Department of Defense, 9/2001]
NORAD Recommended Air Threat Conference - Leidig and Commander Pat Gardner, the assistant DDO, had earlier on decided to convene an all-purpose “significant event conference” in response to the attacks on the World Trade Center. That call commenced at 9:29 a.m. (see 9:29 a.m.-9:34 a.m. September 11, 2001). NORAD had recommended that it be reconvened as an air threat conference. [9/11 Commission, 4/29/2004 pdf file; 9/11 Commission, 7/24/2004, pp. 37] According to Chambers, an air threat conference is used when aircraft are considered to be hostile and involves many more people than are in a significant event conference, including the chairman of the Joint Chiefs of Staff, the secretary of defense, and officials from the White House. [US Department of Defense, 9/2001] However, Leidig thought a significant event conference was the correct kind of call for the situation. He will tell the 9/11 Commission that an air threat conference “had Cold War implications and brought a different group of people to a conference.” [9/11 Commission, 4/29/2004 pdf file] Gardner will say that threat conferences are intended for dealing with external threats. [9/11 Commission, 5/12/2004]
Deputy Director Ordered Upgrading of Conference - All the same, Leidig gave the order to transition to an air threat conference. [9/11 Commission, 7/24/2004, pp. 37] He will tell the 9/11 Commission that, in retrospect, the reason he thinks he did so “was because he perceived an air threat at that time.” [9/11 Commission, 4/29/2004 pdf file] Therefore, the significant event conference was brought to an end at around 9:34 a.m., and resumes as an air threat conference three minutes later. [9/11 Commission, 7/24/2004, pp. 37] Staff Sergeant Val Harrison could have established the air threat conference either by leaving all of those participating in the significant event conference on the line and then adding new participants one at a time, or by simply hanging up on everyone in the significant event conference and then having the computer do a mass dialing. Harrison recommended the second option. Leidig had agreed, and directed her to disconnect the conference call and start over.
Problem with Connecting Some Agencies - As happened with the significant event conference, there are problems connecting several agencies to the air threat conference. [US Department of Defense, 9/2001] Despite repeated attempts, operators struggle to get the FAA connected (see (9:29 a.m.-12:00 p.m.) September 11, 2001), and it will take until 10:17 a.m. for an FAA representative to finally join the call (see 10:17 a.m. September 11, 2001). [9/11 Commission, 7/21/2003 pdf file; 9/11 Commission, 7/24/2004, pp. 37] Other agencies had not understood what Leidig meant about convening the new conference, and so did not hang up their phones when the NMCC disconnected the previous conference call. As a result, all the NMCC got from them was a busy signal over the line. Chambers will recall, “As with the [significant event conference], it took longer than expected to convene the [air threat conference].” [US Department of Defense, 9/2001]
Top Officials Participate - Throughout the more than eight hours the air threat conference is running for, numerous key officials will participate in it at various times, including President Bush, Vice President Dick Cheney, Deputy National Security Adviser Stephen Hadley, acting Chairman of the Joint Chiefs of Staff Richard Myers, military personnel from the Presidential Emergency Operations Center below the White House, and the president’s military aide on Air Force One. [9/11 Commission, 7/24/2004, pp. 37] Brigadier General Montague Winfield, the original DDO, who had Leidig take his place so he could attend a pre-scheduled meeting (see 8:30 a.m. September 11, 2001), will later recall, “All of the governmental agencies… that were involved in any activity that was going on in the United States… were in that conference.” [ABC News, 9/11/2002]
Winfield Runs Conference after Returning to Post - Winfield will take over the running of the air threat conference from Leidig after returning to his post at around 10:30 a.m. (see (10:30 a.m.) September 11, 2001). [CNN, 9/4/2002; 9/11 Commission, 4/29/2004 pdf file; 9/11 Commission, 6/17/2004] But although NMCC conference calls are moderated by the DDO, Rumsfeld will use the DDO’s phone to participate in the air threat conference, meaning that Winfield is unable to moderate the conference when the defense secretary is participating. [9/11 Commission, 7/21/2003 pdf file]

Entity Tags: Charles Leidig, Federal Aviation Administration, Montague Winfield, Charles Chambers, Patrick Gardner, North American Aerospace Defense Command, National Military Command Center, Val Harrison

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Sabra Kaulia.Sabra Kaulia. [Source: Aircraft Owners and Pilots Association]The US Air Force liaison to the FAA joins a teleconference that has been established by the FAA shortly after the time of the Pentagon attack, according to her own later recollections, although an FAA statement will claim she joined it significantly earlier. [9/11 Commission, 5/23/2003; 9/11 Commission, 3/26/2004; US Department of Transportation, 8/31/2006 pdf file]
Watches Television, Does Not Join Teleconference - The Air Force liaison, Colonel Sheryl Atkins, will recall that she arrived at FAA headquarters in Washington, DC, around five to 10 minutes after the first attack in New York (see (Between 8:51 a.m. and 8:56 a.m.) September 11, 2001), and went to her fourth-floor office there. She will describe: “Everybody was there around the TV. We watched the events unfold. At first, we were kind of hanging back and saying, you know, ‘there’s something awful going on with the air traffic system.‘… But at a certain point, not too long after that, it became obvious that, you know, something really strange is going on.”
Heads to Situation Room - Shortly after 9:37 a.m., when the Pentagon is hit, Atkins hears CNN reporting a bomb may have gone off at the Pentagon. She will recall that she then heads up to the 10th floor of the headquarters building along with Sabra Kaulia, the program director for air traffic airspace management, and goes to the air traffic situation room, where David Canoles, the FAA’s manager of air traffic evaluations and investigations, is participating in a teleconference. [9/11 Commission, 3/26/2004; US Department of Transportation, 8/31/2006 pdf file] According to a 2003 statement provided by the FAA, the FAA established this teleconference with several other agencies “[w]ithin minutes” of the first attack in New York (see (8:50 a.m.) September 11, 2001). [9/11 Commission, 5/23/2003] Atkins will say she is then “in and out” of the air traffic situation room throughout the morning. She does not speak with any of the military representatives at the White House, but does work directly with Steve Nolte, the airspace manager at NORAD, and also communicates with Lieutenant Colonel Michael-Anne Cherry, who is at the FAA’s Herndon Command Center, to exchange information. [9/11 Commission, 3/26/2004]
FAA Claims Atkins Joined Teleconference Earlier - In a 2003 statement it provides to the 9/11 Commission the FAA will say Atkins joined the teleconference significantly earlier than she claims. According to the statement, the “US Air Force liaison to the FAA [i.e. Atkins] immediately joined the FAA headquarters phone bridge” that was set up minutes after the first attack in New York, “and established contact with NORAD on a separate line.” [9/11 Commission, 5/23/2003]
Other Liaisons Arrive Later On - As well as Atkins, who represents the Air Force, liaisons representing the other three military services within the Department of Defense (the Army, the Navy, and the Marine Corps) work at FAA headquarters. However, Atkins is the only military liaison currently there. The Navy and Marine Corps liaisons will arrive at FAA headquarters at around 10:30 a.m. and join Atkins on the building’s 10th floor, from where they help establish and maintain critical communications channels between the Defense Department and the FAA. The Army liaison will not arrive at FAA headquarters until the following day. [Federal Aviation Administration, 3/21/2002 pdf file; 9/11 Commission, 3/26/2004]

Entity Tags: Sheryl Atkins, David Canoles, Sabra Kaulia

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

FAA National Operations Manager Ben Sliney.FAA National Operations Manager Ben Sliney. [Source: Publicity photo]Ben Sliney, FAA’s National Operations Manager, orders the entire nationwide air traffic system shut down. All flights at US airports are stopped. Around 3,950 flights are still in the air. Sliney makes the decision without consulting FAA head Jane Garvey, Transportation Secretary Norman Mineta, or other bosses, but they quickly approve his actions. It’s Sliney’s first day on the job. [CNN, 9/12/2001; New York Times, 9/12/2001; Washington Post, 9/12/2001; MSNBC, 9/22/2001; USA Today, 8/12/2002; Associated Press, 8/12/2002; USA Today, 8/12/2002; USA Today, 8/13/2002; Associated Press, 8/21/2002; Newsday, 9/10/2002] Seventy-five percent of the planes land within one hour of the order. [USA Today, 8/12/2002] The 9/11 Commission will later remark that this “was an unprecedented order” that the “air traffic control system handled… with great skill.” [9/11 Commission, 7/24/2004, pp. 29] The Washington Post has reported that Mineta told Monte Belger at the FAA: “Monte, bring all the planes down,” even adding, “[Expletive] pilot discretion.” [Washington Post, 1/27/2002] However, it is later reported by a different Post reporter that Mineta did not even know of the order until 15 minutes later. This reporter “says FAA officials had begged him to maintain the fiction.” [Slate, 4/2/2002]

Entity Tags: Ben Sliney, Federal Aviation Administration, Jane Garvey, Monte Belger, Norman Mineta

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The plane that has been flying General Henry Shelton, the chairman of the Joint Chiefs of Staff, over the Atlantic Ocean has to spend two hours in a “holding pattern” near Greenland and then more time in a holding pattern over Canada before it is cleared to fly back into the United States. [Air Force Magazine, 9/2011 pdf file] Shelton was flying toward Europe for a NATO conference (see 7:15 a.m. September 11, 2001), but, after he learned of the attacks on the World Trade Center, ordered that his plane turn around and return to the US (see (8:50 a.m.-10:00 a.m.) September 11, 2001). However, air traffic controllers have denied the request to do so because US airspace has been shut down (see (9:45 a.m.) September 11, 2001). [Federal Aviation Administration, 3/21/2002, pp. G-1 pdf file; Shelton, Levinson, and McConnell, 2010, pp. 430-432]
Plane Has to Fly in a Holding Pattern near Greenland - Therefore, although Shelton’s plane, nicknamed “Speckled Trout,” does turn around, it doesn’t initially fly back to the United States. For a couple of hours, since its crew doesn’t have clearance to return to the US and it doesn’t have a destination, the plane goes into a “holding pattern” near Greenland. Captain Rob Pedersen, the flight navigator, comes up with a list of alternative landing sites, which include Thule Air Base in Greenland and Naval Air Station Keflavik in Iceland. Although the crew decides to head back to the US, Pedersen will later recall, it is still difficult to get a security clearance, even for such a high-profile passenger as Shelton.
Plane Goes into Another Holding Pattern over Canada - Speckled Trout eventually reaches Canada, but the plane is still refused entry into US airspace and so it goes into a holding pattern again. “In the beginning we had a few problems convincing [the air traffic controller] to allow us back into the country, [even though] we were ordered at a significantly high level to come back,” Pedersen will recall. “You can’t say over the radio who you are carrying because they don’t have secure communications at the FAA.… We had to tell them over an open line that we had a DV Code 2, which is a ranking that a lot of DVs [distinguished visitors] fall under.” Eventually, the crew receives permission to fly into the US, although the time when this occurs is unstated. “It took a little bit of time, and I’m sure there were a lot of phone calls made, before they let us back in,” Pedersen will say. [Air Force Magazine, 9/2011 pdf file] Shelton, however, will contradict this account and claim his plane is cleared to enter US airspace significantly earlier. He will recall that those on the plane are told they have permission to enter US airspace 10 minutes after he talks on the phone with General Richard Myers, vice chairman of the Joint Chiefs of Staff (see (Shortly After 10:00 a.m.) September 11, 2001), which would mean they receive clearance possibly as early as around 10:15 a.m. [Shelton, Levinson, and McConnell, 2010, pp. 432-433]
Myers Takes Shelton's Place as Chairman While Shelton Is outside the US - After flying over New York, Speckled Trout will land at Andrews Air Force Base, just outside Washington, DC, at 4:40 p.m. (see 4:40 p.m. September 11, 2001). [Federal Aviation Administration, 9/11/2001 pdf file; UNC-TV, 1/27/2013] While the plane is being denied permission to enter US airspace, Myers remains as the acting chairman of the Joint Chiefs of Staff in Shelton’s place. This is “how the law reads whenever the chairman is out of the country,” Shelton will write. “Until I crossed back into United States airspace, all the decisions would be Dick’s to make, in conjunction with Secretary [of Defense Donald] Rumsfeld and the president.” [Shelton, Levinson, and McConnell, 2010, pp. 432]

Entity Tags: Rob Pedersen, Henry Hugh Shelton

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

FAA radar displays begin showing that a growing number of international flights approaching America are transmitting warning codes from their transponders. [Spencer, 2008, pp. 196-197]
Airspace Shut Down - At around 9:45 a.m., the FAA shut down US airspace and ordered all aircraft to land (see (9:45 a.m.) September 11, 2001). Shortly afterwards, Canada took similar action. However, international flights that are over the oceans and approaching America are getting low on fuel. As their crews establish radio contact with air traffic controllers, they are told that American airspace is closed. Many of the worried pilots dial emergency codes into their transponders. [US Congress. House. Committee On Transportation And Infrastructure, 9/21/2001; 9/11 Commission, 7/24/2004, pp. 29; Spencer, 2008, pp. 196]
Radar Screens Highlight Numerous Flights - A plane’s transponder is a device that sends that aircraft’s identifying information, speed, and altitude to radar screens. [Washington Post, 9/16/2001] There are three specific codes that pilots can dial into their transponder to signal an emergency: “7500” signifies a hijacking, “7600” signifies a loss of radio, and “7700” signifies other emergencies. [Spencer, 2008, pp. 25-26] Amid the current crisis, FAA radar screens begin highlighting a growing number of flights over the oceans that are transmitting warning codes. According to author Lynn Spencer, “One foreign crew dials in the four-digit code for ‘hijack,’ just to let the authorities know they are aware of what is taking place.” [Spencer, 2008, pp. 196-197] In response to a request from the FAA, Canada will agree to open its airspace to all international flights that are diverted away from the United States, allowing those flights to land at Canadian airports (see 10:21 a.m. September 11, 2001). [CNN, 9/12/2001; Time, 9/14/2001; NAV Canada, 7/22/2005]

Entity Tags: Federal Aviation Administration

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

A US Park Police helicopter flying above the burning Pentagon.A US Park Police helicopter flying above the burning Pentagon. [Source: Mark D. Faram / US Navy]A US Park Police helicopter that recently arrived over the Pentagon is contacted by an air traffic controller at Washington’s Reagan National Airport and given responsibility for controlling the airspace over Washington, DC, since the control tower at Reagan Airport is being evacuated. [US Naval Historical Center, 11/20/2001; US Department of Health and Human Services, 7/2002, pp. A-48 pdf file; McDonnell, 2004, pp. 21 pdf file] The Park Police Aviation Unit’s two helicopters arrived at the Pentagon within minutes of the attack there (see Shortly After 9:37 a.m. September 11, 2001). [Rotor and Wing, 11/2001] While one of the helicopters landed to conduct medical evacuations, the other, which has the call sign “Eagle I,” circled overhead. [US Naval Historical Center, 11/20/2001; McDonnell, 2004, pp. 20-21 pdf file]
Airport Tower Being Evacuated - Eagle I has made three or four orbits around the Pentagon when a controller in the Reagan Airport tower radios its pilot, Sergeant Ronald Galey. The controller says the tower is currently evacuating. [US Naval Historical Center, 11/20/2001; National Park Service, 1/17/2002] According to some accounts, the tower is being evacuated due to reports of more hijacked aircraft heading in its direction (see (9:55 a.m.) September 11, 2001). [NBC 4, 9/11/2003; Spencer, 2008, pp. 215-216] But according to other accounts, the controller tells Galey the tower is evacuating because it is being affected by smoke that is drifting across from the burning Pentagon. [US Department of Health and Human Services, 7/2002, pp. A-48 pdf file; McDonnell, 2004, pp. 21 pdf file; Goldberg et al., 2007, pp. 162] Galey will recall the controller saying: “Eagle I, we can’t see anything outside the tower. [The smoke is] getting in our ventilation system. We’re abandoning the tower.” Therefore, the controller gives Galey control of the airspace for the entire Washington area, telling him, “You’ve got the airspace.” [US Naval Historical Center, 11/20/2001; McDonnell, 2004, pp. 21 pdf file]
Pilot Alarmed at Being Given Control of Airspace - The control tower at Reagan Airport is “normally the ‘nerve center’ for directing any response to this type of incident,” according to a National Park Service news article. [National Park Service, 9/21/2002] Galey is initially alarmed. He will recall thinking, “Exactly what I need right now is I’ve got control of the airspace.” [US Naval Historical Center, 11/20/2001] However, he is unaware that the FAA has ordered that all airborne aircraft must land at the nearest airport (see (9:45 a.m.) September 11, 2001), which will make his task easier. [US Congress. House. Committee On Transportation And Infrastructure, 9/21/2001; McDonnell, 2004, pp. 21 pdf file; 9/11 Commission, 7/24/2004, pp. 29]
NORAD Advises Pilot on Controlling Airspace - The controller gives Galey the radio frequency for NORAD, and tells him to contact NORAD. [National Park Service, 1/17/2002; McDonnell, 2004, pp. 21-22 pdf file] The person Galey then talks to at NORAD informs him: “Look, you have no [air] traffic in DC, except for the traffic that you’re calling. The aircraft that you’re calling in, we’re going to allow to come in. Other than that, there should be no one besides the military, and we’ll call you out the military traffic.” Galey will later reflect: “So that helped tremendously. That function alone was not very taxing.” [US Naval Historical Center, 11/20/2001] The person at NORAD also tells Galey there is “an unauthorized aircraft inbound from the Pennsylvania area, with the estimated time of arrival approximately 20 minutes into DC.” Galey will recall that he and the rest of his crew discuss what they should do, and decide that “we’d take our chances and stay there [at the Pentagon], and do what we came there to do.” [National Park Service, 1/17/2002]
Airspace Control Passed on to Metropolitan Police Helicopter - Eagle I becomes “the air traffic control function for the area, flying a slow racetrack pattern over the site and clearing aircraft in and out,” according to Lieutenant Philip Cholak, the Park Police Aviation Unit commander. [Aviation International News, 10/1/2001] But after a time Galey asks his paramedic to request that a Metropolitan Police helicopter be launched to take over the command and control of the Washington airspace. He tells the paramedic: “You know we’re going to have to do a medevac mission here. We’re going to have to relinquish the command/control function to somebody else.” A Metropolitan Police helicopter subsequently arrives and relieves Eagle I of its command and control function. [US Naval Historical Center, 11/20/2001; McDonnell, 2004, pp. 22 pdf file]

Entity Tags: Metropolitan Police Department of the District of Columbia, United States Park Police, Philip W. Cholak, Ronald A. Galey, Ronald Reagan Washington National Airport, North American Aerospace Defense Command

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

United Airlines temporarily loses communication with three of its aircraft. Andrew Studdert, United Airlines’ chief operating officer, will tell the 9/11 Commission that at around 10:00 a.m., the airline loses contact with Flight 399, Flight 415, and Flight 641. Persistent attempts to communicate with these “missing” aircraft are eventually successful. [9/11 Commission, 1/27/2004] At 10:45 a.m., the FAA’s Cleveland Center will report that Flight 641 is on the ground at Detroit Metro Airport in Michigan. [Federal Aviation Administration, 9/11/2001]

Entity Tags: Andrew P. Studdert, United Airlines

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Smoke rising, minutes after Flight 93 crashes in Pennsylvania.Smoke rising, minutes after Flight 93 crashes in Pennsylvania. [Source: CNN]Exactly when Flight 93 crashes is unclear. According to NORAD, Flight 93 crashes at 10:03 a.m. [North American Aerospace Defense Command, 9/18/2001] The 9/11 Commission gives an exact time of 11 seconds after 10:03 a.m. It will claim this “time is supported by evidence from the staff’s radar analysis, the flight data recorder, NTSB [National Transportation Safety Board] analysis, and infrared satellite data.” It does note that “[t]he precise crash time has been the subject of some dispute.” [9/11 Commission, 6/17/2004] However, a seismic study authorized by the US Army and drafted by scientists Won-Young Kim and Gerald Baum to determine when the plane crashed will conclude that the crash happened at 10:06:05 a.m. [Kim and Baum, 2002 pdf file; San Francisco Chronicle, 12/9/2002] The discrepancy is so puzzling that the Philadelphia Daily News will publish an article on the issue, titled “Three-Minute Discrepancy in Tape.” This notes that leading seismologists agree on the 10:06 a.m. time, give or take a couple of seconds. [Philadelphia Daily News, 9/16/2002] The New York Observer will note that, in addition to the seismology study, “The FAA gives a crash time of 10:07 a.m. In addition, the New York Times, drawing on flight controllers in more than one FAA facility, put the time at 10:10 a.m. Up to a seven-minute discrepancy? In terms of an air disaster, seven minutes is close to an eternity. The way our nation has historically treated any airline tragedy is to pair up recordings from the cockpit and air traffic control and parse the timeline down to the hundredths of a second. However, as [former Inspector General of the Transportation Department] Mary Schiavo points out, ‘We don’t have an NTSB (National Transportation Safety Board) investigation here, and they ordinarily dissect the timeline to the thousandth of a second.’” [New York Observer, 2/15/2004]

Entity Tags: 9/11 Commission, North American Aerospace Defense Command, Federal Aviation Administration, Won-Young Kim, Mary Schiavo, Gerald R. Baum

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The military liaison at the FAA’s Cleveland Center calls NORAD’s Northeast Air Defense Sector (NEADS) and alerts it to the hijacked Flight 93. According to the 9/11 Commission, this is the first notification NEADS receives about Flight 93, but it comes too late, since the plane has already crashed (see (10:06 a.m.) September 11, 2001). [9/11 Commission, 7/24/2004, pp. 30; 9/11 Commission, 8/26/2004, pp. 46]
'Bomb on Board' Flight 93 - At 10:05 a.m., the military liaison at the Cleveland Center, who is unaware that Flight 93 has just crashed, calls NEADS to inform it that Flight 93 is heading toward Washington, DC. Even though communicating with NEADS is not one of his responsibilities, he wants to make sure it is in the loop. [Spencer, 2008, pp. 224] At NEADS, the call is answered by Tech Sergeant Shelley Watson. Shortly into the call, at 10:07, the military liaison tells her: “We got a United 93 out here. Are you aware of that?” He continues, “That has a bomb on board.” Watson asks: “A bomb on board? And this is confirmed? You have a mode three [beacon code], sir?” The military liaison replies, “No, we lost his transponder” (see (9:40 a.m.) September 11, 2001). The news about Flight 93 is shouted out to Major Kevin Nasypany, the NEADS mission crew commander. Nasypany responds: “Gimme the call sign. Gimme the whole nine yards.… Let’s get some info, real quick. They got a bomb?”
Liaison Wants Fighters Sent toward Flight 93 - The military liaison continues, asking Watson if NEADS scrambled fighter jets in response to Delta 1989, an aircraft that was mistakenly reported as having been hijacked (see (9:28 a.m.-9:33 a.m.) September 11, 2001 and 9:39 a.m. September 11, 2001). Watson replies: “We did. Out of Selfridge and Toledo” (see (9:55 a.m.) September 11, 2001 and 10:01 a.m. September 11, 2001), and says these jets are airborne. When the military liaison asks if the fighters can be directed to where Flight 93 is, Watson asks him if the Cleveland Center has latitude and longitude coordinates for this aircraft. The military liaison replies that he has not got this information available right now. All he knows is that Flight 93 has “got a confirmed bomb on board… and right now, his last known position was in the Westmoreland area.… Which is… in the Pittsburgh, Pennsylvania, area.” [North American Aerospace Defense Command, 9/11/2001; Vanity Fair, 8/1/2006]
NEADS Searches on Radar - The news of a bomb on board Flight 93 spreads quickly at NEADS, and personnel there search for the aircraft’s primary return on their radar screens. But because the plane has already crashed, they will be unable to locate it. NEADS will only learn that Flight 93 has crashed at 10:15 a.m., during a call with the FAA’s Washington Center (see 10:15 a.m. September 11, 2001). [9/11 Commission, 7/24/2004, pp. 30-31]
FAA Failed to Notify Military Earlier - The Cleveland Center’s notification to NEADS about Flight 93 comes 39 minutes after the plane was hijacked (see (9:28 a.m.) September 11, 2001) and 33 minutes after FAA headquarters was alerted to the hijacking (see 9:34 a.m. September 11, 2001). [9/11 Commission, 7/24/2004, pp. 11, 28] At the time NEADS is alerted to Flight 93, NORAD is similarly uninformed about this aircraft, according to the 9/11 Commission. The Commission will state, “At 10:07, its representative on the air threat conference call stated that NORAD had ‘no indication of a hijack heading to DC at this time.’” According to the Commission, the National Military Command Center (NMCC) at the Pentagon learned about the Flight 93 hijacking slightly earlier on, at 10:03 a.m. (see 10:03 a.m. September 11, 2001). However, the NMCC was notified by the White House, not the FAA. [9/11 Commission, 7/24/2004, pp. 42] A former senior FAA executive, speaking on condition of anonymity, will later try to explain why it takes the FAA so long to alert NEADS to Flight 93. He will say, “Our whole procedures prior to 9/11 were that you turned everything [regarding a hijacking] over to the FBI.” [Vanity Fair, 8/1/2006] Yet military instructions contradict this, stating, “In the event of a hijacking, the NMCC will be notified by the most expeditious means by the FAA.” [US Department of Defense, 7/31/1997 pdf file; US Department of Defense, 6/1/2001 pdf file]
NORAD Commanders Claim Earlier Awareness of Flight 93 - Two senior NORAD officials will contradict the 9/11 Commission’s conclusion, and claim they were aware of Flight 93 well before it crashed (see Shortly Before 9:36 a.m. September 11, 2001 and (9:36 a.m.-10:06 a.m.) September 11, 2001). [Filson, 2003, pp. 68, 71-73] Colonel Robert Marr, the NEADS battle commander, will tell the Commission that, while the flight was still airborne, “his focus was on UAL 93, which was circling over Chicago,” and he “distinctly remembers watching the flight UAL 93 come west, and turn over Cleveland.” [9/11 Commission, 10/27/2003 pdf file; 9/11 Commission, 1/23/2004 pdf file] Major General Larry Arnold, the commander of the Continental US NORAD Region, will recall, “[W]e watched the [Flight] 93 track as it meandered around the Ohio-Pennsylvania area and started to turn south toward DC.” [Filson, 2003, pp. 71]

Entity Tags: Cleveland Air Route Traffic Control Center, Kevin Nasypany, North American Aerospace Defense Command, Northeast Air Defense Sector, Shelley Watson

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The military liaison at the FAA’s Cleveland Center is informed that Flight 93 has been hijacked and is given information about its location. It is unclear when the liaison first receives this information, but it must happen before 10:07, as he telephones NORAD’s Northeast Air Defense Sector (NEADS) at this time to pass on the information (see 10:05 a.m.-10:08 a.m. September 11, 2001). [9/11 Commission, 7/24/2004, pp. 30] Military liaison officers at the FAA’s Command Center are also said to be informed of the hijacking of Flight 93 (see After 9:34 a.m. September 11, 2001).

Entity Tags: Cleveland Air Route Traffic Control Center

Timeline Tags: Complete 911 Timeline

A representative of the FAA finally joins an emergency teleconference being conducted by the National Military Command Center (NMCC) at the Pentagon, after NMCC personnel have repeatedly been unable to connect the FAA to the conference. In response to the terrorist attacks, the NMCC began a “significant event conference” at 9:29 a.m., to gather and disseminate information from government agencies (see 9:29 a.m.-9:34 a.m. September 11, 2001), and eight minutes later upgraded this to an “air threat conference” (see 9:37 a.m.-9:39 a.m. September 11, 2001). However, according to the 9/11 Commission Report, because of “equipment problems and difficulty finding secure phone numbers,” operators at the NMCC have been unable to connect the FAA to the conference (see (9:29 a.m.-12:00 p.m.) September 11, 2001). [9/11 Commission, 7/21/2003 pdf file; 9/11 Commission, 7/24/2004, pp. 37]
FAA Representative Has 'No Situational Awareness' - The air threat conference is now joined by FAA employee Rayford Brooks. [9/11 Commission, 7/24/2004, pp. 463] Brooks is on duty in the Central Altitude Reservation Function (CARF) at the FAA’s Command Center in Herndon, Virginia. This office is responsible for processing and separating altitude reservations, and coordinates military requests for priority airspace activity with FAA facilities and international agencies. [9/11 Commission, 4/5/2004; 9/11 Commission, 4/15/2004] However, Brooks has “no familiarity with or responsibility for hijackings, no access to decisionmakers, and none of the information available to senior FAA officials,” according to the 9/11 Commission Report. [9/11 Commission, 7/24/2004, pp. 37] Brooks will later recall having had “no situational awareness” of the current crisis. He only arrived at the Command Center at around 9:30 a.m. and had not been listening to the radio while driving to work. Those on the Command Center floor have not given him any instructions regarding the NMCC conference or other operational matters.
Brooks on Conference instead of Military Cell Officer - Brooks will tell the 9/11 Commission that the Air Traffic Services Cell (ATSC)—a small office located next to the CARF at the Command Center, manned by military reservists (see (Between 9:04 a.m. and 9:25 a.m.) September 11, 2001)—has asked the CARF to monitor the NMCC’s air threat conference on its behalf for three or four hours, because the ATSC does not have a working STU-III secure phone. [9/11 Commission, 4/15/2004] (A chronology of the ATSC’s actions on this day will state that the keys for the ATSC’s secure phones are recalibrated at some point, and these phones then “worked fine.” [US Air Force, 9/11/2001] )
NORAD and FAA Leaders out of Contact - Three times before 10:03 a.m., when the last hijacked plane reportedly crashed (see (10:03 a.m.-10:10 a.m.) September 11, 2001), NORAD asked for confirmation of the FAA’s presence on the NMCC’s conference, so the FAA could provide an update on the hijackings, but the FAA had not been connected at those times. As a result of the FAA’s absence from the conference, the leaders of NORAD and the FAA have effectively been out of contact with each other. [9/11 Commission, 6/17/2004; 9/11 Commission, 7/24/2004, pp. 37-38]
FAA's Absence Caused Confusion over Identities of Hijacked Planes - General Richard Myers, the acting chairman of the Joint Chiefs of Staff, will later write that the lack of communication between the NMCC and the FAA has contributed to confusion at the NMCC over the flight numbers of the aircraft that were hijacked. However, according to Myers, the NMCC could not contact the FAA over ordinary phone lines because “[t]errorists who could hijack aircraft so readily could probably also eavesdrop on unsecured phone lines.” [Myers, 2009, pp. 153]

Entity Tags: Air Traffic Services Cell, Richard B. Myers, Federal Aviation Administration, National Military Command Center, Rayford Brooks

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Patrick Madigan, the commander of the Somerset Barracks of the Pennsylvania State Police, arrives at the Flight 93 crash scene around 10:20 a.m. [Department of the Army and the Air Force National Guard Bureau, 2002 pdf file] He says that at some point later in the day (he does not specify a time), a “strange incident” occurs: “We were there at the site and an airplane started circling. It was a jetliner circling the crash site very low. No one knew what to expect because we knew that all of the planes were supposedly grounded.” (The FAA had, at about 9:45 a.m., ordered that all aircraft be instructed to land at the nearest airport (see (9:45 a.m.) September 11, 2001).) After a few minutes of uncertainty, it is announced that the plane is carrying United Airlines executives, who are circling the site to view it before they land in nearby Johnstown. [Kashurba, 2002, pp. 63] Another low-flying jet plane was witnessed over the site earlier on, around the time Flight 93 went down (see (Before and After 10:06 a.m.) September 11, 2001).

Entity Tags: Patrick Madigan, United Airlines

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The Secret Service reports that a United Airlines aircraft, Flight 182, is missing. Doug Davis, the special assistant for technical operations in air traffic services at FAA headquarters is talking over the phone with John White, a manager at the FAA’s Command Center in Herndon, Virginia. At 10:47 a.m., Davis informs White, “[United Airlines] 182, Secret Service is saying is missing.” Davis asks White to “find out for me” whether this is indeed the case. He adds that the flight is going from “Boston to Seattle.” [9/11 Commission, 11/4/2003] According to some accounts, Flight 182 is reported as missing at a later time. A Secret Service timeline of the morning’s events records the flight as being “unaccounted for” at 10:55 a.m. [Secret Service, 9/11/2001] And according to an FAA chronology, the plane is reported as being “unaccounted for” over an FAA teleconference at 11:40 a.m. [Federal Aviation Administration, 9/11/2001] Presumably Flight 182 is located at some later time, although further details of this missing aircraft are unstated.

Entity Tags: John White, Federal Aviation Administration, Doug Davis, US Secret Service, United Airlines

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

James K. Will.James K. Will. [Source: WTAE-TV]After hearing a plane has crashed in his area, a farmer flies over the Flight 93 crash site to take photos of the wreckage. James K. Will, who is an aerial photographer as well as a farmer, had just landed his Cessna on a private airstrip at his farm in Berlin, Pennsylvania, after visiting nearby Altoona. His mother rushed out and told him there were reports of a plane having crashed near Shanksville. He’d grabbed his camera and set off in his plane for the site, to take photos of the wreckage. He later recalls that he circles the Flight 93 crash scene around 45 minutes after the crash occurred. He says, “I thought it was just an accident.” He is then intercepted by a state police helicopter, which escorts him to the Johnstown airport. He will be questioned and briefly detained there before being released. His plane will be searched and then released. [Pittsburgh Channel, 9/15/2001; Pittsburgh Tribune-Review, 9/15/2001] At around 9:45 a.m., all FAA facilities had been ordered to instruct every aircraft to land at the nearest airport (see (9:45 a.m.) September 11, 2001). About 20 minutes earlier, the FAA had initiated a nationwide ground stop, which prohibited takeoffs and required planes in the air to land as soon as reasonable (see (9:26 a.m.) September 11, 2001). [Time, 9/14/2001; 9/11 Commission, 7/24/2004, pp. 25 and 29]

Entity Tags: James K. Will

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Nine United Airlines aircraft are reported missing. Andrew Studdert, United Airlines’ chief operating officer, will tell the 9/11 Commission that between 10:55 a.m. and 11:15 a.m., United Airlines Flights 57, 103, 634, 1211, 1695, 2101, 2102, 2256, and 2725 are reported as missing. All nine aircraft are eventually located at various airports. [9/11 Commission, 1/27/2004] One of them, Flight 57, is later reported as having landed at Garden City Regional Airport in Kansas. [9/11 Commission, 2004]

Entity Tags: Andrew P. Studdert, United Airlines

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

At the NORAD operations center in Cheyenne Mountain, Colorado, NORAD commander in chief, General Ralph Eberhart, orders a limited version of a little known plan to clear the skies and give the military control over US airspace. [Aviation Week and Space Technology, 6/3/2002; 9/11 Commission, 6/17/2004] The plan, Security Control of Air Traffic and Navigation Aids (SCATANA), was developed in the 1960s as a way to clear airspace above the US and off the US coast in the event of a confirmed warning of a nuclear attack by the Soviet Union. Once it is activated a wartime air traffic priority list is established, allowing essential aircraft and personnel to use the airspace. Among others, this list includes the US president, essential national security staff, aircraft involved in continental defense missions, and airborne command posts. [Schwartz, 1998]
Eberhart Suggests Limited Version of Plan - Eberhart and his staff suggest implementing the limited version of SCATANA over the air threat conference call. Transportation Secretary Norman Mineta immediately concurs. [Aviation Week and Space Technology, 6/3/2002; Filson, 2003, pp. 73] Unlike a full SCATANA, this modified version allows ground navigation aids to stay on, for the benefit of aircraft that are still airborne. Under the plan, for about the next three days all flights other than military, law enforcement, fire fighters, and medevac, will require approval from the national Defense Department/FAA Air Traffic Services Cell, located within the FAA’s Herndon Command Center. [Bulletin of the Atomic Scientists, 11/2001; Aviation Week and Space Technology, 6/10/2002; 9/11 Commission, 6/17/2004] Notice is sent out to all civil and military air traffic control facilities, informing them that the skies now officially belong to NORAD. [Spencer, 2008, pp. 269]
Order Supposedly Made Late Due to Safety Concerns - The SCATANA order is issued over an hour after the FAA ordered all planes down (see (9:45 a.m.) September 11, 2001), and after at least three-quarters of them have already landed. [USA Today, 8/13/2002] Eberhart will later say the delay is due to safety concerns, because NORAD would have been unable to control US airspace—with over 4,000 planes airborne at the time of the attacks—with its radar capabilities. [9/11 Commission, 6/17/2004] Defense Week magazine will suggest SCATANA is not implemented until even later, at around 2:00 p.m. It says NORAD issues a “notice to airmen” implementing the modified version of SCATANA about five hours after Flight 11 hit the World Trade Center. [Bulletin of the Atomic Scientists, 11/2001]

Entity Tags: North American Aerospace Defense Command, Ralph Eberhart, Norman Mineta

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The FAA’s Command Center in Herndon, Virginia, sends out an advisory that suspends operations in the national airspace system, requiring all aircraft to land and prohibiting aircraft from taking off from all airports. [Federal Aviation Administration, 3/21/2002 pdf file; Federal Aviation Administration, 4/15/2002] At 9:26 a.m., the FAA ordered a national ground stop that prevented any aircraft from taking off (see (9:26 a.m.) September 11, 2001), and at 9:45 a.m. it instructed all airborne aircraft to land at the nearest airport (see (9:45 a.m.) September 11, 2001). [US Congress. House. Committee On Transportation And Infrastructure, 9/21/2001] According to a 2002 FAA report, “With this advisory, the shutdown of the air traffic system en masse had officially begun.” The advisory states: “Due to extraordinary circumstances and for reasons of safety. Attention all aircraft operators. By order of the Federal Aviation Command Center all airports/airdromes are not authorized for landing and takeoff. All traffic including airborne aircraft are encouraged to land shortly, including all helicopter traffic. Aircraft involved in firefighting in the Northwest US are excluded. Please read this notice over the emergency frequencies, and VOR [VHF omnidirectional range] voice.” [Federal Aviation Administration, 3/21/2002 pdf file]

Entity Tags: Federal Aviation Administration

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The plane carrying Attorney General John Ashcroft, which is heading toward Washington, DC, is threatened with being shot down by the military if it does not land, and is diverted to Richmond, Virginia. [Washington Post, 9/28/2001; Federal Aviation Administration, 3/21/2002 pdf file; Spencer, 2008, pp. 258] Even though the FAA had issued a national ground stop preventing aircraft from taking off (see (9:26 a.m.) September 11, 2001), Ashcroft insisted that his plane take off and fly back to Washington after it landed in Milwaukee to refuel (see After 9:37 a.m. September 11, 2001). And though the FAA has been instructing all aircraft to land at the nearest airport (see (9:45 a.m.) September 11, 2001), Ashcroft told his pilot to ignore an order to land near Detroit, and instead continue toward Washington (see 10:40 a.m. September 11, 2001). [US Congress. House. Committee On Transportation And Infrastructure, 9/21/2001; Ashcroft, 2006, pp. 117; Spencer, 2008, pp. 257-258]
Fighters Intercept Ashcroft's Plane - When Ben Sliney, the national operations manager at the FAA’s Herndon Command Center, hears that Ashcroft’s pilot is refusing to land, he notifies NORAD’s Northeast Air Defense Sector (NEADS). As a result, two F-16 fighter jets from a nearby Air National Guard base intercept Ashcroft’s plane, but they remain out of sight and undetected by its pilot. The F-16s’ pilots report to NEADS that the errant plane is a private corporate jet without any markings, which is heading for Washington and does not seem to have any intention of landing.
Sliney Wants Plane 'out of My Sky' - Ashcroft’s pilot, David Clemmer, has started broadcasting a message “in the blind,” meaning it is not intended for any specific air traffic controller, stating that the attorney general is on the plane and they are returning to Washington. The F-16 pilots notify NEADS of this, but when a NEADS officer then tells Sliney about the message, Sliney asks, “Can you guarantee me that it is indeed John Ashcroft on that plane?” The officer replies, “No sir, we cannot,” and so Sliney demands, “Then get him out of my sky!” NEADS issues the order to the two F-16 pilots that if the plane will not land voluntarily, then they must take it down. The F-16 flight lead calls the FAA’s Washington Center and arranges for one of its controllers to call the plane’s pilot and tell him that if he does not divert and land, his plane will be shot down. [Spencer, 2008, pp. 258]
Pilot Warned Plane Could Be Shot Down - The Washington Center controller tells Clemmer, “Land your plane immediately, or risk getting shot down by the US Air Force.” [Newsweek, 9/24/2001] Clemmer relays this warning to Ashcroft, telling him: “Sir, there’s a shootdown order. If we get any closer to Washington, they might blow us out of the sky.” [Ashcroft, 2006, pp. 118] Clemmer also turns to an FBI agent who has been assigned to guard Ashcroft, and says, “Well, Larry, we’re in deep kimchi here, and basically, all the rules you and I know are out the window.” He tells air traffic controllers that he is carrying the attorney general, but is worried that this information won’t get through to military commanders who control the airspace around Washington. [Newsweek, 9/24/2001] Clemmer will later recall: “We didn’t want to do anything that would jeopardize our safety or the safety of the [attorney general]. I know I didn’t want to get shot down either.”
Plane Diverted to Richmond - According to some accounts, Ashcroft finally relents, and, at the insistence of the FAA, his plane is diverted to Richmond. Ashcroft will later recall, “It was a real negotiation [with the FAA].” [Washington Post, 9/28/2001; Newsweek, 3/10/2003; Spencer, 2008, pp. 258] However, according to a 2002 FAA report, Ashcroft’s plane is diverted to Richmond “due to air traffic requests for the release of medevac aircraft in the Washington, DC, area.” [Federal Aviation Administration, 3/21/2002 pdf file] As the plane flies toward Richmond, Clemmer negotiates getting a fighter escort for it. Ashcroft will persist in his desire to reach Washington, and his plane will eventually be cleared to land in the capital (see 11:27 a.m. September 11, 2001). [Washington Post, 9/28/2001; Spencer, 2008, pp. 272]

Entity Tags: John Ashcroft, Northeast Air Defense Sector, David Clemmer, Washington Air Route Traffic Control Center, Ben Sliney

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The US Coast Guard reports having received distress signals from three aircraft that are over the Atlantic Ocean, but these signals are soon determined to be false alarms, and one of the supposedly distressed aircraft is reported as not even flying on this day. [Federal Aviation Administration, 9/11/2001; Federal Aviation Administration, 3/21/2002, pp. S-26, S-29 pdf file]
Three Planes Issued Distress Signals - At 11:18 a.m., it is reported on an FAA teleconference that the Coast Guard in Norfolk, Virginia, has received distress signals from United Airlines Flight 947, Continental Airlines Flight 57, and Air Canada Flight 65. [Federal Aviation Administration, 3/21/2002, pp. S-26 pdf file]
Command Center Told to Notify Military - Fifteen minutes later, at 11:33 a.m., Jeff Griffith, the deputy director of air traffic at the FAA’s Washington, DC, headquarters, passes on the news about the three planes in a phone call with John White, a manager at the FAA’s Command Center in Herndon, Virginia. Griffith confirms that the distress signals received by the Coast Guard were from planes “in the Atlantic,” and instructs White, “Would you please make sure that NORAD is aware [of the three aircraft], and also the Services Cell,” meaning the Air Traffic Services Cell, a small office at the Command Center that is manned by military reservists (see (Between 9:04 a.m. and 9:25 a.m.) September 11, 2001). White replies, “I’ll do it.” [Federal Aviation Administration, 9/11/2001]
Flight Heading to Canada - Around the same time, according to a 2002 FAA report, it is reported on the FAA teleconference that United 947 is now heading toward Gander, in Canada, and is being managed by the Gander Area Control Center, which is the Canadian facility responsible for transatlantic flights. [Federal Aviation Administration, 3/21/2002, pp. S-28 pdf file; MSNBC, 3/12/2010] However, a transcript of FAA communications on this day indicates that it is in fact the Continental Airlines flight that is heading toward Gander. According to that transcript, beginning around 11:40 a.m., White discusses the three suspicious flights over the phone with Doug Davis, the special assistant for technical operations in air traffic services at FAA headquarters. White says Continental 57 was originally destined for Newark, New Jersey, and air traffic controllers “have a track on the target” for this flight, which indicates that it is now heading to Gander. However, White says, controllers are “still looking” for the other two aircraft reported by the Coast Guard. [Federal Aviation Administration, 9/11/2001]
Planes Found to Be Safe - At 11:46 a.m., it is reported over the FAA teleconference that “[a]ll three aircraft that the US Coast Guard reported hearing distress calls [from] are accounted for,” and all of them are fine. [Federal Aviation Administration, 3/21/2002, pp. S-29 pdf file] A couple of minutes later, White updates Davis on what is now known. White says one of the aircraft that was reportedly transmitting a distress signal, Air Canada Flight 65, was never even airborne. He says it “landed last night and was scheduled to depart today, but the flight’s canceled.” He adds that another of the flights, United 947, has “returned to Amsterdam,” in the Netherlands. [Federal Aviation Administration, 9/11/2001] Finally, at 12:27 p.m., it is reported over the FAA teleconference that Continental 57 has “landed in Gander.” [Federal Aviation Administration, 3/21/2002, pp. S-33 pdf file]

Entity Tags: Federal Aviation Administration, US Coast Guard, Gander Area Control Center, Jeff Griffith, John White, Doug Davis

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

While President Bush is at Barksdale Air Force Base in Louisiana, officials there receive reports of unidentified aircraft heading toward the base. [American History, 10/2006 pdf file] The FAA ordered that all airborne aircraft must land at the nearest airport at 9:45 a.m. (see (9:45 a.m.) September 11, 2001) and by about 12:15 p.m., US airspace is clear of all civilian air traffic, with the exception of a small number of law enforcement and emergency operations aircraft (see 12:16 p.m. September 11, 2001). [US Congress. House. Committee On Transportation And Infrastructure, 9/21/2001; Federal Aviation Administration, 4/15/2002; 9/11 Commission, 7/24/2004, pp. 29] But for the entire time Bush is at Barksdale Air Force Base, Lieutenant General Thomas Keck, the commander of the 8th Air Force at Barksdale, and White House aides traveling with the president are receiving reports of unidentified aircraft flying toward the base. According to American History magazine, “Under Threatcon Delta, and what Keck’s staff already knew of the day’s shocking events, there was a low threshold for declaring any incoming plane or object a threat.” Therefore, Keck “made sure his staff kept him closely apprised of each questionable target.… If necessary, the commander was ready to give the order to fire on any plane that threatened the base.” Whether the suspicious aircraft are identified, and the reasons they are flying toward Barksdale ever discovered, is unstated. Barksdale Air Force Base is “already a prime target because of its key fleet of B-52s,” according to American History magazine. “Attack on the base by a hijacked airliner was never among the anticipated scenarios, however, so the base’s air security was light.” [American History, 10/2006 pdf file] Administration officials will later tell the New York Times that around this time, there are two reports of international flights that are unaccounted for, and two domestic flights are seen as possible threats. [New York Times, 9/16/2001] Also while Bush is at Barksdale, a report is received that a high-speed object is heading for his ranch in Crawford, Texas, but this turns out to be a false alarm (see 1:05 p.m. September 11, 2001). [Sammon, 2002, pp. 117; Draper, 2007, pp. 142-143]

Entity Tags: Barksdale Air Force Base, Thomas Keck

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

US airspace is clear of all civilian air traffic, with the exception of a small number of law enforcement and emergency operations aircraft. Otherwise, only military aircraft are airborne. [Federal Aviation Administration, 9/18/2001; Federal Aviation Administration, 4/15/2002; USA Today, 8/12/2002] The FAA’s Command Center in Herndon, Virginia, announces that the airspace has been successfully shut down. [Spencer, 2008, pp. 269] At 9:26 a.m., the Command Center ordered a national ground stop that prevented any aircraft from taking off (see (9:26 a.m.) September 11, 2001), and at 9:45 a.m. it ordered FAA facilities to instruct all aircraft to land at the nearest airport (see (9:45 a.m.) September 11, 2001). Since then, about 4,500 commercial and general aviation aircraft have landed without incident. This is the first time ever that all civilian aircraft in the United States have been grounded. [US Congress. House. Committee On Transportation And Infrastructure, 9/21/2001; Federal Aviation Administration, 3/21/2002 pdf file; 9/11 Commission, 7/24/2004, pp. 29] Author Pamela Freni will later comment that this clearing of the skies was “a tremendous feat accomplished by a huge team that had never even practiced this part of the game before.” Frank Hatfield, the air traffic division manager for the FAA’s eastern region, will comment: “What we did on September 11 was done amazingly well. It was almost like World War II, the way the airplanes were handled.” [Freni, 2003, pp. 69] At 12:30 p.m., the FAA will report that there are 50 flights in US airspace, but none of them are reporting any problems. [CNN, 9/12/2001]

Entity Tags: Federal Aviation Administration, Frank Hatfield

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Alberto Gonzales.Alberto Gonzales. [Source: George W. Bush Presidential Center]White House counsel Alberto Gonzales and Timothy Flanigan, the deputy White House counsel, meet at the White House, joined by phone by John Yoo, a deputy assistant attorney general in the Office of Legal Counsel, and discuss how the US government can respond to today’s terrorist attacks. [Eichenwald, 2012, pp. 47-48] Gonzales was in Norfolk, Virginia, giving a speech around the time the attacks on the World Trade Center took place. He wanted to return to Washington, DC, as quickly as possible but was delayed due to the FAA grounding all aircraft (see (9:45 a.m.) September 11, 2001). Fortunately, he ran into a naval officer who drove him to Norfolk Naval Station, where senior officers arranged for a helicopter to fly him to the capital. The helicopter took off sometime after midday and, once back in Washington, he joined Vice President Dick Cheney and other senior administration officials in the Presidential Emergency Operations Center below the White House. [National Public Radio, 9/8/2011; Gonzales, 2016, pp. 1-9]
Lawyers Set Out the 'Legal Framework' for the War on Terror - With little for him to do there and feeling there are legal matters that need to be addressed, Gonzales calls Flanigan, who is in the White House Situation Room, and the two men arrange to go to Gonzales’s office on the second floor of the West Wing. Once there, they start discussing two key legal issues: Was the current situation a war and how could America respond to it? They decide they need the input of someone with more expertise and therefore call Yoo, who is at the Strategic Information and Operations Center at FBI headquarters, and ask for his assistance. Yoo then participates in the discussion over the phone. Over the next 45 minutes, the three lawyers lay out “the legal framework for policies that would govern the coming war on terror,” journalist and author Kurt Eichenwald will later describe.
Lawyer Says the President Can Take 'Any Action He Wished' - They begin by discussing the need for President Bush to declare a state of emergency and Gonzales instructs Flanigan to arrange this. They subsequently consider the issue of how much power the president has in the current circumstances. According to Eichenwald, Yoo tells his two colleagues: “In a time of military conflict, the president’s authority [is] sweeping. In fact, Bush could take just about any action he wished. A war was certain and legal.” The men agree that, unlike in a typical confrontation, the enemy combatants in the new conflict are “renegades” who do not belong to any particular country and “not soldiers whose rights [are] dictated by the rules of war under the Geneva Conventions.” The combatants’ rights, Yoo says, will be “far more limited than those of a soldier fighting on behalf of an established government.”
Suggestion Is Made to Send Terrorists to Guantanamo Bay - The men consider whether the president can block captured terrorists from the courts, thereby suspending habeas corpus. Yoo says that “if the United States declared the terrorist operation an act of war, the president should have that authority.” The men determine, however, that captured terrorists cannot be put in American prisons under the authority of the courts and then told they have no rights. They agree that these terrorists will need to be held somewhere beyond the reach of the judicial system. After they consider several locations, one of them suggests that the terrorists could be taken to Guantanamo Bay, the US naval base in Cuba. [Eichenwald, 2012, pp. 47-48]

Entity Tags: John C. Yoo, Alberto R. Gonzales, Timothy E. Flanigan

Timeline Tags: Complete 911 Timeline

Robert J. Darling.Robert J. Darling. [Source: Robert J. Darling]Government and military officials in the Presidential Emergency Operations Center (PEOC) below the White House learn that the FBI’s crisis response team wants to be flown from California back to Washington, DC, and, because of the team’s crucial role in responding to terrorism, they arrange a flight for it as a matter of priority. [Darling, 2010, pp. 73-75] The FBI’s Critical Incident Response Group (CIRG) arrived in California the previous day for a week of field training (see September 10, 2001) and was therefore stranded away from Washington when the terrorist attacks occurred this morning (see 10:03 a.m. September 11, 2001). [NBC 4, 9/11/2001; Darling, 2010, pp. 75]
FBI San Francisco Office Arranges to Get Team to Washington - Two agents belonging to the CIRG learned of the attacks when the FBI’s San Francisco field office phoned them just before 9:00 a.m. (Eastern time) and alerted them to the events in New York. The agents quickly went to the field office, where Bruce Gebhardt, the special agent in charge, gave them the details of what had happened, and told them to get their team together and head to the San Francisco airport. Gebhardt said that although US airspace was closed to all commercial air traffic (see (9:45 a.m.) September 11, 2001), he would do what he could to get the CIRG transported back to Washington as soon as possible. The team members therefore packed their gear and went to the airport. [Federal Bureau of Investigation, 8/18/2004; Darling, 2010, pp. 75-76]
Transporting Unit Home Becomes 'Priority' at White House - In the PEOC, Colonel Michael Irwin, the director of operations for the White House Military Office, is called by a senior member of the FBI, who requests airlift support for the CIRG. The request is quickly passed to Joe Hagin, the White House deputy chief of staff. Hagin hands it back to Irwin and says: “I want you to get these folks back to DC immediately! Let the military know this is a White House priority.” The task of getting the CIRG back to Washington is then passed to Major Robert Darling, the White House Military Office airlift operations liaison officer, who is also in the PEOC. It becomes his “number-one mission priority.” The CIRG is the unit that coordinates the FBI’s rapid response to crisis incidents, including terrorist attacks. Therefore, “It made perfect sense,” Darling will later comment, “that the president would want them home and at the ready, given the day’s events.”
United Airlines Offers to Provide Aircraft - After learning that the FBI has essential personnel trying to return to Washington, United Airlines quickly offers its services. If the White House can authorize an aircraft to fly under the Special Assignment Air Mission designator, the airline says, it will provide the required aircraft and crew immediately. With the approval of Hagin and a phone call to NORAD, United Airlines Flight 8811 is authorized to transport the CIRG back to Washington. “Within the hour” of this authorization being given, according to Darling, the CIRG members will take off from San Francisco and head back to Washington (see Late Afternoon September 11, 2001). [Darling, 2010, pp. 73-76]

Entity Tags: Critical Incident Response Group, Bruce Gebhardt, Federal Bureau of Investigation, United Airlines, Michael Irwin, Robert J. Darling, Joseph W. Hagin, North American Aerospace Defense Command

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Van Harp.Van Harp. [Source: US Department of Defense]Van Harp, the head of the FBI’s Washington, DC, field office, is away from the capital in South Carolina for his summer vacation, and has to be flown back to Washington in an FBI plane to help respond to the terrorist attacks. [Washington Post, 3/4/2002; US Department of Health and Human Services, 7/2002, pp. C45, C47 pdf file; 9/11 Commission, 12/15/2003 pdf file] Harp took command of the Washington field office (WFO) as its new assistant director in charge in July this year. [Washington Post, 4/18/2003; Federal Bureau of Investigation, 2010] But on this day he is in Hilton Head, South Carolina, on vacation with his wife, children, and grandchildren. He learned of the first plane hitting the World Trade Center when his secretary, Donna Cummings, paged him shortly after the attack occurred. Harp then called Cummings and she told him what had happened. He switched on the television in time to see the second plane crashing into the WTC, and had known then that he needed to return to Washington.
FBI Granted Permission to Send Plane to Collect Harp - Because all planes have been grounded across the US (see (9:45 a.m.) September 11, 2001), the FBI initially arranged for state troopers in South Carolina, North Carolina, and Virginia to drive Harp back to Washington. But the bureau was then able to get special permission from the FAA to send an aircraft to fly Harp home. [Kessler, 2002, pp. 424; Washington Post, 3/4/2002; US Department of Health and Human Services, 7/2002, pp. C47 pdf file] The FBI therefore sent one of its aircraft to collect Harp from Hilton Head Airport. The small, single-engine plane received clearance to take off from Manassas Regional Airport, 30 miles west of Washington, at around 2:30 p.m. The time when it lands in Hilton Head is unstated, as is the time when it lands back at the Manassas airport. From the Manassas airport, Harp drives to an FBI command post at Washington Dulles International Airport and then arrives at the WFO sometime later in the afternoon. He will stay at the field office until 2:20 a.m. [Federal Aviation Administration, 9/11/2001; Kessler, 2002, pp. 424; Federal Aviation Administration, 3/21/2002, pp. G-2, S-41 pdf file]
Three of Office's Four Leaders Absent - The WFO is the second largest of the FBI’s 56 field offices in terms of staffing. It comprises 657 agents and 650 professional support staff. Serving under Harp, three special agents in charge (SACs) direct the office’s administrative and technical, criminal investigations, and national security divisions. However, of the WFO’s four senior leaders, only SAC Arthur Eberhart, the head of the administrative and technical division, was present at the office when the terrorist attacks took place. SAC Ellen Knowlton, who headed the criminal investigative division, was recently reassigned to FBI headquarters, and so her position is currently vacant. SAC Timothy Bereznay was only recently appointed to head the national security division, and so he has not yet reported to the WFO. [US Department of Health and Human Services, 7/2002, pp. C3, C45 pdf file; 9/11 Commission, 12/15/2003 pdf file; Federal Bureau of Investigation, 4/6/2006] The WFO will be one of the key FBI offices involved in the fight against terrorism following the 9/11 attacks. [Washington Post, 4/18/2003]

Entity Tags: FBI Washington Field Office, Arthur Eberhart, Federal Bureau of Investigation, Donna Cummings, Timothy Bereznay, Van Harp, Ellen Knowlton

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The plane with General Henry Shelton, the chairman of the Joint Chiefs of Staff, on board lands at Andrews Air Force Base, just outside Washington, DC, after repeatedly being denied permission to enter US airspace. [Federal Aviation Administration, 9/11/2001 pdf file; Air Force Magazine, 9/2011 pdf file] At the time of the attacks on the World Trade Center, Shelton was flying toward Europe to attend a NATO conference. After he learned of the second attack, he ordered that his plane turn around and head back to the US (see (8:50 a.m.-10:00 a.m.) September 11, 2001). [Shelton, Levinson, and McConnell, 2010, pp. 430-431] However, for a number of hours, the plane, nicknamed “Speckled Trout,” was refused clearance to return because the nation’s airspace had been shut down (see (9:45 a.m.) September 11, 2001). After flying in a “holding pattern” near Greenland and later flying in another holding pattern over Canada, the plane was finally cleared to fly back into the United States (see (After 9:45 a.m.) September 11, 2001). [Air Force Magazine, 9/2011 pdf file] It was escorted by F-16 fighter jets as it flew into the US airspace. [Sanger Herald, 10/17/2013] After flying over New York, Speckled Trout lands at Andrews Air Force Base. [Air Force Magazine, 9/2011 pdf file] It is recorded as having landed at 4:40 p.m. [Federal Aviation Administration, 9/11/2001 pdf file] “We landed to find the normally bustling Air Force base like a ghost town,” Shelton will later recall. “Like so many government institutions, parts of the base bad been evacuated.” At the base, Shelton is “met by an entourage of three District of Columbia patrol cars and about a dozen motorcycle cops,” which will escort his car, “lights flashing and sirens blaring,” to the Pentagon. [Shelton, Levinson, and McConnell, 2010, pp. 433-434; UNC-TV, 1/27/2013] He will join other senior officials in the National Military Command Center (NMCC) at the Pentagon at 5:40 p.m. (see 5:40 p.m. September 11, 2001). [Myers, 2009, pp. 159]

Entity Tags: Henry Hugh Shelton

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

An unidentified fast-moving aircraft is noticed flying toward Air Force One as it is bringing President Bush back to Washington, DC, but the aircraft turns out to be just a Learjet, reportedly “in the wrong place at the wrong time.” [Aviation Week and Space Technology, 9/9/2002; Filson, 2003, pp. 88] Bush announced he would be returning to Washington while he was at Offutt Air Force Base in Nebraska (see (4:00 p.m.) September 11, 2001), and his plane left the base and headed for the capital shortly after 4:30 p.m. (see (4:33 p.m.) September 11, 2001). [Sammon, 2002, pp. 123; Bush, 2010, pp. 135] As Air Force One is approaching Andrews Air Force Base, just outside Washington, fighter jets belonging to the District of Columbia Air National Guard (DCANG) and the 119th Fighter Wing are flying combat air patrols over the capital. They have been joined by a number of other fighters from across the northeast US.
Pilots Told They Will Be Escorting Air Force One - Among the pilots flying over Washington are Lieutenant Colonel Marc Sasseville and Lieutenant Heather Penney of the DCANG, who are flying their second mission of the day. Sasseville and Penney are instructed to contact an Airborne Warning and Control System (AWACS) plane in their area and “expect special tasking.” When they make contact with the AWACS plane, its controller directs them to fly about 160 miles to the west and says they are going to “escort Air Force One.” Two of the 119th Fighter Wing’s jets offer to accompany Sasseville and Penney, and Sasseville accepts.
Unidentified Aircraft Seen Flying toward Air Force One - A short time later, an AWACS controller reports that a fast-moving unidentified aircraft is flying toward Air Force One. The aircraft is currently about 70 miles southwest of the president’s plane, but is on a “cutoff vector” to Air Force One. The controller reports that the suspicious plane is flying above 40,000 feet, whereas Air Force One is “in the 20,000 feet range.” All the same, Sasseville directs the 119th Fighter Wing’s jets to intercept the aircraft and they quickly do so.
Aircraft Is Not a Threat - The suspicious aircraft turns out to be just a Learjet “that hadn’t yet landed after aircraft nationwide had been ordered out of the air,” according to Aviation Week and Space Technology magazine. [Aviation Week and Space Technology, 9/9/2002; Filson, 2003, pp. 88] However, the FAA ordered that all airborne aircraft must land at the nearest airport many hours earlier, at around 9:45 a.m. (see (9:45 a.m.) September 11, 2001). [US Congress. House. Committee On Transportation And Infrastructure, 9/21/2001; 9/11 Commission, 7/24/2004, pp. 25] The plane is simply “in the wrong place at the wrong time,” according to author Leslie Filson. [Filson, 2003, pp. 88] “There was a Learjet vectored on Air Force One,” Sasseville will tell the 9/11 Commission, “but it was nothing.” [9/11 Commission, 3/11/2004 pdf file] The two DCANG fighters and the two 119th Fighter Wing jets will subsequently accompany Air Force One as it flies into Andrews Air Force Base. [Aviation Week and Space Technology, 9/9/2002]

Entity Tags: Heather Penney Garcia, Marc Sasseville, District of Columbia Air National Guard, 119th Fighter Wing

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

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