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Context of '(8:56 a.m.-9:05 a.m.) September 11, 2001: Flight 77 Disappears from Indianapolis Center Radar Screens'

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A map showing the planned flight path of Payne Stewart’s plane and the crash site location.A map showing the planned flight path of Payne Stewart’s plane and the crash site location. [Source: CNN]A runaway Learjet crashes near Mina, South Dakota, after flying on autopilot for several hours. On board is champion golfer Payne Stewart, along with five others. It is believed the accident is due to a loss of cabin pressure at high altitude, which would have caused all on board to go unconscious from lack of oxygen. [ABC News, 10/25/1999; Washington Post, 10/26/1999; National Transportation Safety Board, 11/28/2000] After air traffic controllers lost contact with the plane, it was tracked by the Federal Aviation Administration (FAA), assisted by several Air Force and Air National Guard fighters and an AWACS radar control plane, up until when it crashed. It was also tracked on radar screens inside the National Military Command Center in the Pentagon. [CNN, 10/26/1999] The Learjet had departed Orlando, Florida at 9:19 a.m., bound for Texas. The FAA says controllers lost contact with it at 9:44 a.m. [Washington Post, 10/26/1999] , but according to a later report by the National Transportation Safety Board (NTSB) the plane first failed to respond to air traffic control at 9:33 a.m., after which the controller repeatedly tried to make contact for the next 4 1/2 minutes, without success. [National Transportation Safety Board, 11/28/2000] NORAD’s Southeast Air Defense Sector was notified of the emergency at 9:55 a.m. [9/11 Commission, 7/24/2004, pp. 459] At 10:08 a.m., two F-16 fighters from Tyndall Air Force Base, Florida that were on a routine training mission had been asked by the FAA to intercept the Learjet, but never reached it. At about 10:52 a.m., a fighter from Eglin Air Force Base, Florida, was directed to within 9 miles of it, and at around 11:00 a.m. began a visual inspection of the plane. It accompanied the Learjet from 11:09 to 11:44 a.m. At 11:59 a.m., according to early accounts, four Air National Guard fighters and a refueling tanker from Tulsa, Oklahoma were told to chase the Learjet, but got no closer than 100 miles from it. However, the NTSB later claims that two Tulsa fighters were with it between 12:25 and 12:39 p.m., and were able to visually inspect it. At 12:54 p.m., two Air National Guard fighters from Fargo, North Dakota intercepted the Learjet. Soon after 1:14 p.m., it crashed in swampland, after spiraling to the ground. [Washington Post, 10/26/1999; Associated Press, 10/27/1999; National Transportation Safety Board, 11/28/2000] During its flight, the FAA had routed air traffic around the Learjet, and made sure no other planes flew beneath it, due to the danger of it crashing. [Associated Press, 10/26/1999] There is some discussion as to what could have been done had the plane been on a collision course with a populated area, with CNN reporting, “[O]nly the president has the authority to order a civilian aircraft shot down.” Pentagon spokesman Ken Bacon says the military has no written instructions for shooting down manned civilian planes. According to a 1997 military instruction, the shooting down of unmanned objects such as missiles requires prior approval from the secretary of defense. [US Department of Defense, 7/31/1997 pdf file; CNN, 10/26/1999] A Pentagon spokesman says the fighters that monitored the Learjet had no missiles, but two other fighters on “strip alert” at Fargo had been armed but didn’t take off. [CNN, 10/26/1999] The 9/11 Commission will later compare NORAD’s response to this incident with its response to Flight 11 on 9/11, and claim: “There is no significant difference in NORAD’s reaction to the two incidents.” [9/11 Commission, 7/24/2004, pp. 459]

Entity Tags: Payne Stewart, Federal Aviation Administration, North American Aerospace Defense Command, National Military Command Center, Eglin Air Force Base, Tyndall Air Force Base, Southeast Air Defense Sector

Timeline Tags: Complete 911 Timeline

A Fairfax, Virginia company that makes computer software that tracks and records the flight paths of planes helps media companies and airlines to reconstruct the paths of all four of the hijacked aircraft. [Washington Business Journal, 9/11/2001; Washington Post, 9/13/2001] Flight Explorer sells an Internet-accessible application that provides constantly updated information on the positions of aircraft in flight. It uses radar feeds that the FAA collects from control centers across the US. [Business Wire, 6/16/2000; St. Petersburg Times, 8/12/2001] All of Flight Explorer’s employees begin sorting through its data “after the first crash [of Flight 11] was reported,” so presumably this is at around 8:50 a.m. Whether any particular agency, such as the FAA, requests this or they do it of their own initiative is unknown. Although there are some 4,000 planes in the air above the US at the time of the attacks, the company is quickly able to pinpoint the paths of all four hijacked aircraft. It then creates charts and animated videos of the four flights’ actual and intended routes. About 12 news agencies, including all the major networks, request these animated illustrations. [Washington Business Journal, 9/11/2001; Washington Post, 9/13/2001] Flight Explorer is apparently unhindered by the fact that flights 11 and 93 have their transponders turned off during the hijackings. Its reconstruction of Flight 77’s path ends, however, at 8:57, around the time that aircraft’s transponder goes off and it disappears from controllers’ radar screens (see (8:56 a.m.-9:05 a.m.) September 11, 2001). Yet the 9/11 Commission will later say that, despite this disappearance, “Radar reconstructions performed after 9/11 reveal that FAA radar equipment tracked the flight from the moment its transponder was turned off.” Why the Flight Explorer illustration does not therefore show the rest of Flight 77’s journey is not clear. [AVweb, 9/11/2001; 9/11 Commission, 6/17/2004] Until a few years back, Flight Explorer was the only company that recorded flight paths. Since the 1999 death of golfer Payne Stewart (see October 25, 1999) the FAA has also been recording these paths. [Washington Business Journal, 9/11/2001] The final report of the 9/11 Commission will make no mention of the Flight Explorer flight path recordings. [9/11 Commission, 7/24/2004, pp. 222]

Entity Tags: Flight Explorer

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

CNN is the first major network to show the footage of the crash site. It breaks into a commercial and anchor Carol Lin says, “This just in. You are looking at… obviously a very disturbing live shot there—that is the World Trade Center, and we have unconfirmed reports this morning that a plane has crashed into one of the towers of the World Trade Center.” CNN then switches to Sean Murtagh, the network’s vice president of finance, who says in a live telephone interview, “I just witnessed a plane that appeared to be cruising at a slightly lower than normal altitude over New York City. And it appears to have crashed into—I don’t know which tower it is—but it hit directly in the middle of one of the World Trade Center towers. It was a jet, maybe a two-engine jet, maybe a 737… a large passenger commercial jet… It was teetering back and forth, wing-tip to wing-tip, and it looks like it has crashed into—probably, twenty stories from the top of the World Trade Center—maybe the eightieth to eighty-fifth floor. There is smoke billowing out of the World Trade Center.” [CNN, 9/11/2001; Bamford, 2004, pp. 16-17] Many reports do not come until a few minutes later. For instance, ABC first breaks into regular programming with the story at 8:52 a.m. [ABC News, 9/14/2002] Incredibly, a NORAD timeline presented to the 9/11 Commission in 2003 claims that CNN doesn’t begin its coverage of the attacks until 8:57. [9/11 Commission, 5/23/2003]

Entity Tags: Carol Lin, Sean Murtagh, World Trade Center, CNN

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

According to the 9/11 Commission, “Radar reconstructions performed after 9/11 reveal that FAA radar equipment tracked [Flight 77] from the moment its transponder was turned off at 8:56 [a.m.].” However, for eight minutes and 13 seconds, between 8:56 and 9:05, this primary radar data is not displayed to Indianapolis Center air traffic controllers. “The reasons are technical, arising from the way the software processed radar information, as well as from poor primary radar coverage where American 77 was flying.” [9/11 Commission, 6/17/2004] According to the Washington Post, Flight 77 “was hijacked in an area of limited radar coverage.” The Post adds that there are two particular types of radar system. “Secondary” radar “is the type used almost exclusively today in air traffic control. It takes an aircraft’s identification, destination, speed, and altitude from the plane’s transponder and displays it on a controller’s radar screen.” “Primary” radar, on the other hand, “is an older system. It bounces a beam off an aircraft and tells a controller only that a plane is aloft—but does not display its type or altitude. The two systems are usually mounted on the same tower.” Normally, “If a plane simply disappears from radar screens, most controllers can quickly switch on the primary system, which should display a small plus sign at the plane’s location, even if the aircraft’s transponder is not working. But the radar installation near Parkersburg, W. Va., was built with only secondary radar—called ‘beacon-only’ radar. That left the controller monitoring Flight 77 at the Indianapolis Center blind when the hijackers apparently switched off the aircraft’s transponder (see 8:56 a.m. September 11, 2001), sources said.” [Washington Post, 11/3/2001] In its final report, the 9/11 Commission will include a rather elaborate explanation for the loss of primary radar contact with Flight 77, saying it is because “the ‘preferred’ radar in this geographic area had no primary radar system, the ‘supplemental’ radar had poor primary coverage, and the FAA ATC [air traffic control] software did not allow the display of primary radar data from the ‘tertiary’ and ‘quadrary’ radars.” [9/11 Commission, 7/24/2004, pp. 460] The Commission will note that two managers at the Indianapolis Center who assist in the search on radar for the missing aircraft do “not instruct other controllers at Indianapolis Center to turn on their primary radar coverage to join in the search for American 77.” [9/11 Commission, 6/17/2004]

Entity Tags: 9/11 Commission, Indianapolis Air Route Traffic Control Center

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

According to the 9/11 Commission, shortly after 9:00 a.m., Indianapolis flight control begins to notify other government agencies that American 77 is missing and has possibly crashed. For instance, at 9:08 a.m., Indianapolis contacts Air Force Search and Rescue at Langley Air Force Base, Virginia, and tells them to look out for a downed aircraft. It is not clear what Air Force Search and Rescue does with this information. Indianapolis also contacts the West Virginia State Police at about 9:15 a.m., and asks whether they have any reports of a downed aircraft (see Soon After 9:09 a.m. September 11, 2001). However, they apparently do not contact NORAD, but do notify the FAA regional center at 9:09 a.m. (see 9:09 a.m. September 11, 2001). [Federal Aviation Administration, 9/17/2001 pdf file; 9/11 Commission, 6/17/2004]

Entity Tags: North American Aerospace Defense Command, Indianapolis Air Route Traffic Control Center, 9/11 Commission, Langley Air Force Base, Federal Aviation Administration

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

According to a book about the Federal Aviation Administration’s response on 9/11, the FAA Command Center sends a message to all the nation’s air traffic facilities at this time, announcing the first hijacking. [Freni, 2003, pp. 59] This would be two minutes after it had been informed that the Flight 11 hijackers had announced, “we have [some] planes” (see 9:03 a.m. September 11, 2001). Yet according to the 9/11 Commission, Indianapolis Center, which handles Flight 77, only learns that there are other hijacked aircraft “By 9:20” (see (9:20 a.m.-9:21 a.m.) September 11, 2001). [9/11 Commission, 7/24/2004, pp. 23-24]

Entity Tags: Federal Aviation Administration

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

An air traffic controller at the FAA’s Indianapolis Center, which was monitoring Flight 77 when it disappeared from radar (see 8:56 a.m. September 11, 2001 and (8:56 a.m.-9:05 a.m.) September 11, 2001), learns for the first time that there has been at least one hijacking—of Flight 11—this morning, and that planes have crashed into the World Trade Center. Yet, after he passes this information on to a colleague, neither controller suspects that the missing Flight 77 might also be hijacked. [9/11 Commission, 7/24/2004, pp. 24; Spencer, 2008, pp. 105-107]
Dispatcher Gives Details of Crisis - The controller, a sector radar associate at the Indianapolis Center, calls the American Airlines dispatch office in Texas and overhears dispatcher Jim McDonnell on another call, discussing the morning’s crisis. He hears McDonnell saying, “… and it was a Boston-LA flight and [Flight] 77 is a Dulles-LA flight and, uh, we’ve had an unconfirmed report a second airplane just flew into the World Trade Center.” McDonnell then acknowledges the Indianapolis Center controller, who asks, “Did you get a hold of American 77 by chance?” McDonnell answers, “No sir, but we have an unconfirmed report the second airplane hit the World Trade Center and exploded.” The controller asks, “Say again?” McDonnell tells him: “You know, we lost American 11 to a hijacking. American 11 was a Boston to Los Angeles flight.” The controller seems shocked, saying: “I can’t really… I can’t hear what you’re saying there. You said American 11?” McDonnell replies, “Yes, we were hijacked… and it was a Boston-LA flight, and [Flight] 77 is a Dulles-LA flight and, uh, we’ve had an unconfirmed report a second airplane just flew into the World Trade Center.” The controller then abruptly ends the call, saying: “Thank you very much. Goodbye.” [New York Times, 10/16/2001; Spencer, 2008, pp. 106]
Controllers Make No Connection with Flight 77 - After hanging up, the Indianapolis Center controller immediately calls another of the center’s radar associates and repeats what he has just heard. They look through their flight plans but can find no record of Flight 11 in their system. According to author Lynn Spencer, the center’s host computer, which performs critical radar and flight management functions, only holds on to active flight plans. Therefore, several minutes after the system had stopped tracking the transponder data tag for Flight 11, its flight plan dropped out of the system. According to Spencer, the two controllers fail to connect what McDonnell has said with the disappearance of Flight 77: “The best the controllers can figure is that [Flight 11] was hijacked on the ground in New York and proceeded to take off for Los Angeles without a clearance. They’re not sure just how this is relevant to the disappearance of American 77, if at all, and they’ve done all they can do for now.… Confused, they return to their jobs.” [Spencer, 2008, pp. 106-107]
Hijacking Not Suspected - At 9:08, the Indianapolis Center contacted Air Force Search and Rescue to request that it be on the lookout for an accident involving Flight 77 (see (After 9:00 a.m.) September 11, 2001), and at 9:09 it informs the FAA regional office of a possible accident involving Flight 77 (see 9:09 a.m. September 11, 2001). However, according to the 9/11 Commission, it is not until about 9:20 that the center begins to doubt its initial assumption that Flight 77 has crashed, and discusses this concern with the FAA’s Herndon Command Center (see (9:20 a.m.-9:21 a.m.) September 11, 2001). [9/11 Commission, 8/26/2004, pp. 31-32 pdf file]

Entity Tags: Jim McDonnell, American Airlines, Indianapolis Air Route Traffic Control Center

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

When Indianapolis flight control reported the loss of contact with Flight 77 to the FAA’s Great Lakes Regional Operations Center (see 9:09 a.m. September 11, 2001), an employee at an FAA flight service station (which particular one is unspecified) picks up on the communication and mistakenly calls the Ashland, Kentucky police to report a confirmed crash. Indianapolis controllers had noted the last known position of Flight 77 as being near the Ohio-Kentucky border, so this becomes part of the employee’s report. Indianapolis Center personnel, suspecting that Flight 77 may have crashed, subsequently contact the same police office, requesting information on any crashes. (An FAA report describes them contacting the West Virginia State Police at about 9:15 a.m. Ashland, though in Kentucky, is only a few miles out of West Virginia, so this may be referring the same incident.) Using the flight service station report as an actual accident, the police mistakenly confirm the crash, even though it never actually happened. A state helicopter is even dispatched to the plane’s last known coordinates, but there is nothing there. Time is lost in all the confusion. [Federal Aviation Administration, 9/17/2001 pdf file; Freni, 2003, pp. 29] It is not until about 9:20 a.m., when Indianapolis Center learns there are other hijacked aircraft in the system (see (9:20 a.m.-9:21 a.m.) September 11, 2001), that it will start to doubt its initial assumption that Flight 77 crashed. [9/11 Commission, 8/26/2004, pp. 32 pdf file] However, the report of a downed plane persists. Shortly before 10 a.m., Dale Watson, counterterrorism chief at the FBI, will say to counterterrorism “tsar” Richard Clarke over a video teleconference, “We have a report of a large jet crashed in Kentucky, near the Ohio line.” [Clarke, 2004, pp. 13] According to USA Today, “The reports are so serious that [FAA Administrator Jane] Garvey notifies the White House that there has been another crash. Only later does she learn the reports are erroneous.” [USA Today, 8/13/2002]

Entity Tags: Indianapolis Air Route Traffic Control Center

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

An air traffic controller at the FAA’s Indianapolis Center, which was monitoring Flight 77 when it disappeared from radar (see 8:56 a.m. September 11, 2001 and (8:56 a.m.-9:05 a.m.) September 11, 2001), receives confirmation from American Airlines that Flight 11 was hijacked, but apparently still does not suspect that the missing Flight 77 may also have been hijacked. [New York Times, 10/16/2001; 9/11 Commission, 7/24/2004, pp. 24] The controller, a sector radar associate at the Indianapolis Center, called the American Airlines dispatch office in Texas five minutes earlier, and was informed by dispatcher Jim McDonnell that Flight 11 had been hijacked and that two planes had hit the World Trade Center (see 9:09 a.m. September 11, 2001). [Spencer, 2008, pp. 106] He now calls the dispatch office and again speaks with McDonnell. After introducing himself, he asks, “American 11, you guys said he departed off of, uh, New York?” McDonnell replies, “Boston.” The controller continues, “Boston, he was going to LA, and it was a hijacked airplane?” McDonnell confirms, “Yes.” The controller asks, “And you, have you heard anything from American 77?” McDonnell replies, “No,” and then adds, “I talked to a winder in the center up there, and I gave them the information I got.” (What McDonnell is referring to here is unclear.) The controller thanks McDonnell, and the call ends. [New York Times, 10/16/2001] Despite receiving this information from American Airlines, according to the 9/11 Commission it is not until about 9:20 that the Indianapolis Center begins to doubt its initial assumption that Flight 77 has crashed, and discusses this concern with the FAA’s Herndon Command Center (see (9:20 a.m.-9:21 a.m.) September 11, 2001). [9/11 Commission, 8/26/2004, pp. 32 pdf file]

Entity Tags: Jim McDonnell, American Airlines, Indianapolis Air Route Traffic Control Center

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

According to the 9/11 Commission, the FAA’s Indianapolis Center, which was monitoring Flight 77 when it disappeared from radar (see 8:56 a.m. September 11, 2001 and (8:56 a.m.-9:05 a.m.) September 11, 2001), has learned by 9:20 a.m. that there are “other hijacked aircraft,” and begins “to doubt its initial assumption that American 77 had crashed.” [9/11 Commission, 7/24/2004, pp. 24] In fact, a transcript of air traffic controller communications will show that the Indianapolis Center was informed of the Flight 11 hijacking, and that two planes had hit the World Trade Center, at 9:09 a.m. (see 9:09 a.m. September 11, 2001); five minutes later, it received confirmation of the Flight 11 hijacking (see 9:14 a.m. September 11, 2001). [New York Times, 10/16/2001] And television networks have been covering the crashes in New York since as early as 8:48 a.m. (see 8:48 a.m. September 11, 2001). [Bamford, 2004, pp. 16-17]
Other Facilities Notified - The manager at the Indianapolis Center now discusses the concern that Flight 77 may not have crashed with the FAA’s Command Center in Herndon, Virginia. This discussion prompts the Command Center to notify some FAA field facilities that Flight 77 is lost. [9/11 Commission, 8/26/2004, pp. 32 pdf file] Also at around 9:20, the Indianapolis Center operations manager contacts the FAA’s Chicago Center. He advises its operations manager of his concern that Flight 77 may have been hijacked, and says to be on the lookout, based on the events that have occurred in New York. [Federal Aviation Administration, 9/17/2001 pdf file] By 9:21, according to the 9/11 Commission, the FAA “Command Center, some FAA field facilities, and American Airlines had started to search for American 77. They feared it had been hijacked.” [9/11 Commission, 7/24/2004, pp. 24-25]

Entity Tags: Chicago flight control, Federal Aviation Administration, Indianapolis Air Route Traffic Control Center, American Airlines

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

At FAA headquarters in Washington, DC, David Canoles, the FAA’s manager of air traffic evaluations and investigations, and his staff begin coordinating the collection of forensic evidence that might clarify how the morning’s attacks unfolded. They coordinate the capture and copying of radar track data showing the paths of the four hijacked planes, and obtain air traffic control voice tapes from every facility that had spoken with these planes. FAA Assistant Investigations Manager Tony Mello and other employees will work for most of the afternoon, all night, and part of the following day, gathering data and coordinating with the FBI, Secret Service, Defense Department, White House, and National Transportation Safety Board, making sure these other agencies receive as much evidence as is available. Radar tracks are crudely plotted, showing the flight paths of the four jets, and voice tapes are transcribed. Having been stuck in Chicago when the attacks occurred, (see 8:30 a.m. September 11, 2001), Tony Ferrante, the manager of FAA investigations, will finally arrive at FAA headquarters at 5:00 a.m. on September 12. His first priority is “to ensure that the radar data and voice tapes from every location involved in the attack [are] put under lock and key as soon as possible,” presumably to be kept safe for any investigations. He looks at and listens to the relevant controller tapes, and begins constructing a detailed timeline of the four hijacked aircraft. Along with Tony Mello and others of his staff, Ferrante will spend several days working out the movements of the four planes. FAA radar experts Dan Diggins and Doug Gould will also spend days interpreting the radar tracks of the four planes, piecing together a detailed timeline of their actions from takeoff to crash. [Freni, 2003, pp. 74 and 76-77] The FAA will publish a fairly comprehensive chronology of the hijackings on September 17, though this will not be made public until September 2005. [Federal Aviation Administration, 9/17/2001 pdf file; National Security Archive, 9/9/2005] Presently, it refers any media requests for flight patterns to Flight Explorer, a software company that makes charts of plane routes using information from the FAA’s radar system (see After 8:46 a.m. September 11, 2001). [Washington Post, 9/13/2001] The US military has also started doing its own reconstructions of the radar data for the hijacked aircraft (see (11:30 a.m.) September 11, 2001).

Entity Tags: Doug Gould, David Canoles, Dan Diggins, Tony Mello, Federal Aviation Administration, Tony Ferrante, Flight Explorer

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

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