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Context of '(5:20 p.m.) September 11, 2001: WTC Building 7 Collapses; Cause Remains Unclear'

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Giuliani’s emergency command center.Giuliani’s emergency command center. [Source: CNN]New York City Mayor Rudolph Giuliani opens a $13 million emergency command center on the 23rd floor of World Trade Center Building 7. [Newsday, 9/12/2001] The center is intended to coordinate responses to various emergencies, including natural disasters like hurricanes or floods, and terrorist attacks. The 50,000 square foot center has reinforced, bulletproof, and bomb-resistant walls, its own air supply and water tank, beds, showers to accommodate 30 people, and three backup generators. It also has rooms full of video monitors from where the mayor can oversee police and fire department responses. It is to be staffed around the clock and is intended as a meeting place for city leaders in the event of an act of terrorism. [CNN, 6/7/1999; London Times, 9/12/2001; Glanz and Lipton, 2004, pp. 233] The center is ridiculed as “Rudy’s bunker.” [Time, 12/22/2001] Author Philip Shenon will later comment that it “seemed the supreme example of how Giuliani’s ego and arrogance knew no bounds after four years in office,” and: “WABC Radio mocked Giuliani with a name-that-bunker contest for its listeners. Among the most popular entries: ‘Rudy’s Nuclear Winter Palace’ and ‘The Nut Shell.’” It is criticized because of the cost and because of the location, next to the WTC towers, one of the city’s top terrorist targets. In addition, the high floor it is on means it is vulnerable to power, water, and elevator outages. [Shenon, 2008, pp. 346-347] Most controversial is the 6,000-gallon fuel tank. In 1998 and 1999, Fire Department officials warn that the fuel tank violates city fire codes and poses a hazard. According to one Fire Department memorandum, if the tank were to catch fire it could produce “disaster.” Building 7 will be destroyed late in the day on 9/11; some suspect this tank helps explains why. [New York Times, 12/20/2001]

Entity Tags: Rudolph (“Rudy”) Giuliani, Office of Emergency Management, World Trade Center

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

New York City’s Office of Emergency Management (OEM) purchases crisis management computer software that it plans to launch for use on September 17, and that will significantly help the city’s response to the 9/11 attacks. [Wall Street Journal, 10/23/2001; Wired News, 11/2/2001] The OEM is intended to improve New York’s response to major incidents, including terrorist attacks, and play a key role in managing the city’s overall response to an incident. [9/11 Commission, 7/24/2004, pp. 283-284] The software it buys, called E Team, is an emergency and event management product created by E Team Inc., a small company based in Canoga Park, California. [Wall Street Journal, 10/23/2001; e-ProWire, 5/22/2002] John Hughes, a vice president of E Team Inc., in fact used to be the deputy director of the New York City OEM. E Team was originally created for use by the military in battlefield coordination, but the software can now be used by public agencies and private companies, to “prepare for, respond to, and recover from disasters and emergencies of all types.” [Los Angeles Times, 12/11/2000; California Technology Ventures, 10/16/2001; Wired News, 11/2/2001] It enables officials to coordinate thousands of workers and hundreds of agencies. [Wall Street Journal, 10/23/2001] The OEM plans to install the software on special server computers in its Emergency Operations Center on the 23rd floor of World Trade Center Building 7, and to launch the E Team system on September 17. [Wired News, 11/2/2001; Council of the City of New York, 8/2002, pp. 22 pdf file] But as a result of the terrorist attacks on September 11, the system will instead go into use on September 14, at OEM’s temporary command center at Pier 92 on the Hudson River (see September 14, 2001). [Wall Street Journal, 10/23/2001; e-ProWire, 5/22/2002] Every government organization supporting the OEM command center after 9/11 will use E Team to coordinate its rescue and recovery efforts with the OEM. [California Technology Ventures, 10/16/2001] A report later published by New York City Council’s Select Committee on Technology in Government will say it is ironic that the OEM decides to buy the E Team software in the month before the terrorist attacks in New York take place. The report will comment that the OEM buys the software “in order to better manage precisely the emergency situations that the city faced after 9/11.” [Council of the City of New York, 8/2002, pp. 22 pdf file]

Entity Tags: Office of Emergency Management

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

9/11 hijacker Mohamed Atta receives $100,000 from accounts in Pakistan. The money is transferred to two of his accounts in Florida. [Fox News, 10/2/2001; Associated Press, 10/2/2001; US Congress, 10/3/2001; CNN, 10/6/2001; CNN, 10/8/2001] This will later be reported in various media. For example, ABC News will say that federal authorities track “more than $100,000 from banks in Pakistan to two banks in Florida to accounts held by suspected hijack ringleader Mohamed Atta.” [ABC News, 9/30/2001] Law enforcement sources will tell CNN, “[T]he wire transfers from Pakistan were sent to Atta through two banks in Florida.” [CNN, 10/1/2001] One of the hijackers’ financiers, the Pakistan-based Omar Saeed Sheikh, is said to wire Atta around $100,000 in August (see Early August 2001). The transfers from Pakistan will be disclosed a few weeks after 9/11 but will then fade from view (see September 30-October 7, 2001), until 2003 when John S. Pistole, deputy assistant director of the FBI’s Counterterrorism Division, tells the Senate Committee on Governmental Affairs that the FBI has traced the origin of funding for 9/11 back to accounts in Pakistan (see July 31, 2003). However, in 2004 the 9/11 Commission will fail to mention any funding coming directly from Pakistan (see Late-September 2001-August 2004).

Entity Tags: Saeed Sheikh, Federal Bureau of Investigation, John S. Pistole, Counterterrorism Division (FBI), Mohamed Atta

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

New York City’s Emergency Operations Center (EOC) set up at Pier 92 on the Hudson River following the 9/11 attacks.New York City’s Emergency Operations Center (EOC) set up at Pier 92 on the Hudson River following the 9/11 attacks. [Source: ArcNews]At Pier 92 on the Hudson River, preparations are underway for a training exercise due to take place there the following day. The exercise, called Tripod, which had been scheduled months earlier, is intended to test how well New York’s Office of Emergency Management (OEM) can administer treatment in response to a biological-terrorism attack (see September 12, 2001). [New York Magazine, 10/15/2001; Giuliani, 2002, pp. 355] Pier 92, located just over four miles north-northwest of the World Trade Center, has been set up as a model distribution station where the simulated victims will be treated. [Jenkins and Edwards-Winslow, 9/2003, pp. 15 and 20 pdf file] Ken Longert, the owner of a theatrical lighting business, arrives at the pier at 7:00 a.m. to help get the place ready for the exercise. He will later recall, “Two or three hundred cadets [presumably with the New York police and fire departments] were there, learning the proper procedures in case some kind of disaster hit New York.” Longert will recall that, seconds after the second WTC tower is hit at 9:03, “all the people from OEM disappeared” from the pier. [DiMarco, 2007, pp. 457-458] After OEM’s original command center is destroyed when WTC 7—where it is located—collapses (see (5:20 p.m.) September 11, 2001), Pier 92 will be selected as the location for the substitute command center. [9/11 Commission, 5/19/2004] Members of OEM staff have also arrived early this morning at the OEM offices in WTC 7 to prepare for the exercise (see (Shortly After 8:46 a.m.) September 11, 2001). [Jenkins and Edwards-Winslow, 9/2003, pp. 15 pdf file]

Entity Tags: Tripod, Office of Emergency Management, Ken Longert

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

John Odermatt.John Odermatt. [Source: Queens Gazette]New York City’s Office of Emergency Management (OEM) activates its Emergency Operations Center (EOC) on the 23rd floor of World Trade Center Building 7. The OEM is responsible for managing the city’s response to major incidents, including terrorist attacks. [9/11 Commission, 7/24/2004, pp. 283-284, 293] Its personnel arrived at WTC 7, where it has offices, early this morning to prepare for Tripod, a major biological terrorism training exercise scheduled for September 12 (see September 12, 2001). [Jenkins and Edwards-Winslow, 9/2003, pp. 15 pdf file]
Staffer Is Told to Open the Operations Center - OEM Commissioner John Odermatt and Richard Bylicki, a police sergeant assigned to the OEM, heard the explosion when Flight 11 crashed into the WTC, at 8:46 a.m. (see 8:46 a.m. September 11, 2001). As they look out of the window at the burning North Tower, Odermatt debriefs Bylicki and instructs him to open the EOC for a fully staffed operation. Bylicki therefore sets about activating the operations center. [Bylicki, 6/19/2003]
Staffers Call Agencies and Tell Them to Send Their Representatives - EOC personnel start contacting agencies, including the New York Fire and Police Departments and the Department of Health, and instruct them to send their designated representatives to the center. They also call the State Emergency Management Office (SEMO) and the Federal Emergency Management Agency (FEMA), which they ask to send at least five federal urban search and rescue teams. [9/11 Commission, 5/18/2004 pdf file; 9/11 Commission, 7/24/2004, pp. 293] Meanwhile, Bylicki helps the OEM’s Watch Command handle an “enormous influx” of phone calls, many of which are from senior city officials. [Bylicki, 6/19/2003]
Activation Proceeds without Any Problems - EOC personnel initially struggle to make sense of what has happened at the Twin Towers. [Wachtendorf, 2004, pp. 77] However, the activation apparently proceeds without any problems. Firefighter Timothy Brown, a supervisor at the OEM, is instructed by Calvin Drayton, a deputy director with the OEM, to go up to the 23rd floor of WTC 7 and make sure that personnel are getting the EOC up and running, and the Watch Command is being properly supervised. He goes up to the 23rd floor and first checks the Watch Command. He sees that its supervisor, Mike Lee, has things under control. Then, in the EOC, he sees Michael Berkowitz, a supervisor with the OEM, powering up all the computers and television screens necessary to handle the emergency, and beginning to notify the dozens of agencies that need to send representatives to the center. Berkowitz tells Brown he has the manpower he needs to get the center up and running. “I was very comfortable that OEM was beginning to do what we do in a major emergency,” Brown will later recall. Activating the EOC is something OEM personnel have “drilled for and drilled for and drilled for… and so we were very good at it,” he will comment. [City of New York, 1/15/2002; Project Rebirth, 6/30/2002 pdf file; Firehouse, 1/31/2003]
Center Is Designed for Managing a Crisis - The EOC, which opened in 1999 (see June 8, 1999), is a state-of-the-art facility designed to operate as a stand-alone center from which the city government can operate during a crisis. [City of New York, 2/18/2001] It is one of the most sophisticated facilities of its type in the world. It includes a communications suite, a conference room, a press briefing room, and a large number of staff offices, and has numerous computer-equipped workstations. [Disasters, 3/2003 pdf file] It has enough seating for 68 agencies to operate during an emergency. [City of New York, 2/18/2001] However, it will be evacuated at 9:30 a.m. due to reports of further unaccounted-for planes, according to the 9/11 Commission Report (see (9:30 a.m.) September 11, 2001). [9/11 Commission, 7/24/2004, pp. 305] Other accounts will indicate that it may be evacuated at an earlier time, possibly even before the second crash at the WTC occurs (see (Soon After 8:46 a.m.-9:35 a.m.) September 11, 2001 and (Shortly Before 9:03 a.m.) September 11, 2001).

Entity Tags: Mike Lee, Federal Emergency Management Agency, John Odermatt, Michael Berkowitz, Calvin Drayton, US Department of Health and Human Services, Office of Emergency Management, New York City Fire Department, New York State Emergency Management Office, Timothy Brown, Richard Bylicki, New York City Police Department

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Richard SheirerRichard Sheirer [Source: Publicity photo]Richard Sheirer is in a meeting at New York City Hall when he is informed by telephone of the first plane hitting the World Trade Center. Sheirer is the director of the Mayor’s Office of Emergency Management (OEM), which was set up in 1996 to coordinate the city’s overall response to major incidents, including terrorism (see 1996). It has an emergency command center on the 23rd floor of WTC 7, specially intended for coordinating the response to catastrophes such as terrorist attacks (see June 8, 1999). Yet instead of going to this, Sheirer heads to the North Tower, and arrives at the fire command post set up in its lobby before the second crash at 9:03 a.m. [New York Magazine, 10/15/2001; 9/11 Commission, 5/18/2004 pdf file] John Odermatt, Sheirer’s top deputy, also goes to the North Tower and says that, after the first plane hit, he leaves only two staffers at the command center. John Farmer, who heads the 9/11 Commission unit that assesses the city response to the attacks, will find it “strange that Sheirer, four OEM deputies, and a field responder went straight to the North Tower… rather than to the nearby emergency command center.” Journalists Wayne Barrett and Dan Collins will conclude, “[T]he command center was out of business from the outset.” [Barrett and Collins, 2006, pp. 31 and 34] Sheirer stays at the North Tower lobby until soon after 9:30 a.m., when Mayor Giuliani requests he joins him at the temporary command post at 75 Barclay Street (see (9:50 a.m.-10:10 a.m.) September 11, 2001). [9/11 Commission, 5/18/2004 pdf file] John Farmer will later complain, “We [the 9/11 Commission] tried to get a sense of what Sheirer was really doing. We tried to figure it out from the videos. We couldn’t tell. Everybody from OEM was with him, virtually the whole chain of command. Some of them should have been at the command center.” Fire Captain Kevin Culley, who works as a field responder at OEM, is later asked why most of the OEM’s top brass were with him at the scene of the incident. He says, “I don’t know what they were doing. It was Sheirer’s decision to go there on his own. The command center would normally be the focus of a major event and that would be where I would expect the director to be.” When the 9/11 Commission later investigates OEM’s shortcomings on 9/11, “No rationale for Sheirer’s prolonged lobby stay, no information conveyed to commanders, and no steps to coordinate the response” will be discovered. [Barrett and Collins, 2006, pp. 31-32 and 34]

Entity Tags: Office of Emergency Management, John Odermatt, Kevin Culley, Richard Sheirer

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The jet fuel that spilled from Flight 11 when it hit the North Tower (see 8:46 a.m. September 11, 2001) has mostly burned up by this time. The National Institute of Standards and Technology (NIST), which investigates the collapses, will say “The initial jet fuel fires themselves lasted at most a few minutes.” [National Institute of Standards and Technology, 9/2005, pp. 183] Engineering professor Forman Williams will say the jet fuel “burned for maybe 10 minutes.” [Popular Mechanics, 3/2005] Flight 11, a Boeing 767, had a fuel capacity of 23,980 gallons, but was only carrying about 10,000 gallons when it hit the WTC. NIST will estimate that less than 1,500 gallons were consumed in a fireball inside the tower and a comparable amount was consumed in the fireballs outside the building. Therefore, approximately 7,000 gallons splashed onto the office furnishings and started fires on various floors. However, after the jet fuel is used up, office fires burn until the building collapses. NIST will calculate that there were about four pounds per square foot of combustibles in the office space, or about 60 tons per floor. Offices in the WTC actually have fewer combustibles than some other similar spaces due to the small number of interior walls and limited bookshelf space. NIST will later find that only three of sixteen perimeter columns it recovers reached a temperature of 250°C and neither of the two core columns it retrieves reached this temperature. NIST will also find that none of the samples it acquires reaches a temperature above 600°C (see August 27, 2003). Although steel does not melt until its temperature is about 1,600°C, it may begin to lose significant strength at over 500°C. [National Institute of Standards and Technology, 9/2005, pp. 20, 29, 24, 77] The jet fuel will also burn up in the South Tower about 10 minutes after it is hit (see 9:13 a.m. September 11, 2001).

Entity Tags: Forman Williams, World Trade Center, National Institute of Standards and Technology

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

After the first World Trade Center tower is hit, Barry Jennings, a City Housing Authority worker, and Michael Hess, New York’s corporation counsel, head up to the emergency command center of the Mayor’s Office of Emergency Management (OEM), which is on the 23rd floor of WTC 7. [Associated Press, 9/11/2001] The center, opened in 1999, is intended to coordinate responses to various emergencies, including terrorist attacks (see June 8, 1999). [CNN, 6/7/1999] However, Hess and Jennings find no one there. [National Institute of Standards and Technology, 9/2005, pp. 109-110; BBC, 7/6/2008]
Center Is Empty; Jennings Warned to Leave - Jennings will describe that, when he arrives at the emergency command center, “To my amazement, nobody’s there.” He says: “I saw coffee that was still hot, that was still smoldering. They had screens all over the place, but the screens were blank. So I didn’t know what was going on.” He then phones several individuals, including one of his superiors. When Jennings says where he is, the superior responds: “Get out of there. Get out of there now.” Hess then runs back into the center, after having found the stairwell, and says: “We’re the only ones up here. We gotta get out of here.” [Dylan Avery, 2007; BBC, 7/6/2008]
9/11 Commission Claims Command Center Not Evacuated until Later - Yet, according to the 9/11 Commission, “After the South Tower was hit [at 9:03], OEM senior leadership decided to remain in its ‘bunker’ and continue conducting operations, even though all civilians had been evacuated from 7 WTC.” The Commission will claim the emergency command center is not evacuated until 9:30 a.m. (see (9:30 a.m.) September 11, 2001). [9/11 Commission, 7/24/2004, pp. 305] But according to the London Independent, Hess and Jennings arrive there by the time the South Tower is hit, which suggests the center is evacuated earlier than officially claimed. [Independent, 9/13/2001] Jennings himself will recall, “I had to be inside on the 23rd floor when the second plane hit.” [Dylan Avery, 2007] The possibility that the emergency command center is evacuated earlier than the 9/11 Commission claims is partly confirmed by OEM Commissioner John Odermatt, who later says that after the first plane hit the WTC, he left only two staffers there (see (Soon After 8:46 a.m.-9:35 a.m.) September 11, 2001). [Barrett and Collins, 2006, pp. 34] Jennings and Hess subsequently head down the stairs, but will become trapped in WTC 7, and have to be rescued by firefighters (see 12:10 p.m.-12:15 p.m. September 11, 2001). [National Institute of Standards and Technology, 9/2005, pp. 109-110]

Entity Tags: Michael Hess, Office of Emergency Management, Barry Jennings

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

According to a soldier at the scene, WTC Building 7 is evacuated before the second tower is hit. [Fort Detrick Standard, 10/18/2001] The National Institute of Standards and Technology (NIST) states, “As the second aircraft struck WTC 2, a decision was made to evacuate WTC 7.” This would be just after the Port Authority Police Department called for the evacuation of the entire WTC complex (see 8:59 a.m.-9:02 a.m. September 11, 2001). But by this time, “many WTC 7 occupants [have] already left the building and others [have] begun a self-evacuation of the building.” [National Institute of Standards and Technology, 9/2005, pp. 109] All individuals in the Secret Service’s New York field office, located in WTC 7, were ordered to evacuate after the first attack, and they are in the process of doing so when the second plane hits the South Tower. [PCCW Newsletter, 3/2006] The Secret Service has a Stinger missile secretly stored in the WTC, to be used to protect the president if there were an attack on the city when he visits it. [Weiss, 2003, pp. 379] Presumably, this missile is abandoned with the evacuation. The Office of Emergency Management’s command center, on the 23rd floor of WTC 7, is not evacuated until later, at 9:30 a.m. (see (9:30 a.m.) September 11, 2001).

Entity Tags: World Trade Center, US Secret Service

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Transportation Secretary Norman Mineta. 
Transportation Secretary Norman Mineta. [Source: US Department of Transportation]Transportation Secretary Norman Mineta arrives at the White House bunker—the Presidential Emergency Operations Center (PEOC)—containing Vice President Dick Cheney and others. Mineta will tell NBC News that he arrives there at “probably about 9:27,” though he later says to the 9/11 Commission that he arrives at “about 9:20 a.m.” He also later recalls that Cheney is already there when he arrives. [MSNBC, 9/11/2002; 9/11 Commission, 5/23/2003; St. Petersburg Times, 7/4/2004; Academy of Achievement, 6/3/2006] This supports accounts of Cheney reaching the bunker not long after the second WTC crash (see (Shortly After 9:03 a.m.) September 11, 2001). Questioned about this in 2007 by an activist group, Mineta will confirm that Cheney was “absolutely… already there” in the PEOC when he arrived, and that “This was before American Airlines [Flight 77] went into the Pentagon,” which happens at 9:37. Yet, while admitting there is “conflicting evidence about when the vice president arrived” in the PEOC, the 9/11 Commission will conclude that the “vice president arrived in the room shortly before 10:00, perhaps at 9:58.” Mineta also later claims that when he arrives in the PEOC, Mrs. Lynne Cheney, the wife of the vice president, is already there. Yet the 9/11 Commission will claim she only arrives at the White House at 9:52 (see (9:55 a.m.) September 11, 2001). [9/11 Commission, 7/24/2004, pp. 40; 911truthseattle (.org), 6/26/2007] Once in the PEOC, Mineta establishes open phone lines with his office at the Department of Transportation and with the FAA Operations Center. [Academy of Achievement, 6/3/2006]

Entity Tags: Lynne Cheney, Richard (“Dick”) Cheney, Norman Mineta

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Thomas Von Essen.Thomas Von Essen. [Source: Publicity photo]The Office of Emergency Management’s Emergency Operations Center (EOC) in World Trade Center Building 7 is evacuated in response to a report that more commercial planes are unaccounted for. [9/11 Commission, 7/24/2004, pp. 305] The EOC, which opened in 1999 (see June 8, 1999), is a state-of-the-art facility on the 23rd floor of WTC 7 that is intended to serve as a meeting place for city leaders in the event of an act of terrorism or other kind of crisis. [CNN, 6/7/1999; City of New York, 2/18/2001] Office of Emergency Management (OEM) officials activated it shortly after Flight 11 crashed into the North Tower of the WTC (see (Shortly After 8:46 a.m.) September 11, 2001). [Bylicki, 6/19/2003; 9/11 Commission, 7/24/2004, pp. 293]
Staffers Discussed Evacuation after the First Crash - Soon after the crash occurred, officials in the EOC “began discussing with OEM staff whether or not they should evacuate the building,” according to a report by Tricia Wachtendorf of the Disaster Research Center at the University of Delaware. [Wachtendorf, 2004, pp. 77] Richard Rotanz, deputy director of the OEM, and some other officials in the EOC conducted a “threat analysis” after the second hijacked plane crashed into the WTC, at 9:03 a.m. (see 9:03 a.m. September 11, 2001). [Urban Hazards Forum, 1/2002]
Staffers Want to Stay in the Operations Center - Personnel are reluctant to leave the EOC because in it they have “a tremendous amount of resources at their fingertips” and they are “best able to handle an emergency of this scale,” Wachtendorf will later write. Furthermore, there is no clear procedure to move to or establish an alternative operations center if it is abandoned. “I couldn’t think of where we would go if we left the EOC because at that time we didn’t have a backup facility,” one official will recall. There is, in fact, “no formalized evacuation plan for the EOC,” according to Wachtendorf. [Wachtendorf, 2004, pp. 77-79]
OEM Deputy Director Orders the Evacuation - However, Richard Bylicki, a police sergeant assigned to the OEM, was told during a call with the FAA that at least one other plane, in addition to the two that hit the Twin Towers, is unaccounted for and possibly heading for New York (see (9:30 a.m.) September 11, 2001), and he passed this information on to Rotanz. [Bylicki, 6/19/2003] Rotanz was given the same warning by a Secret Service agent who works in WTC 7. [Urban Hazards Forum, 1/2002; 9/11 Commission, 7/24/2004, pp. 305] Based on this information, he “surmised that [WTC 7] was potentially the next target,” Bylicki will recall. He consequently now orders all OEM employees to leave the building. [Bylicki, 6/19/2003; 9/11 Commission, 4/7/2004] A Secret Service agent, presumably the one who told Rotanz about the additional unaccounted-for planes, also reportedly advises EOC personnel to evacuate. He says, “There’s a reported third plane headed toward the East Coast and we’re warning everybody to vacate the building,” Fire Department Captain Abdo Nahmod will recall. [Journal of Emergency Medical Services, 9/2011, pp. 42 pdf file]
Some Liaisons Have Come to the Operations Center - Various city agencies were contacted after the EOC was activated and instructed to send their designated representatives to the center. None of these representatives have arrived by the time the EOC is evacuated, according to the 9/11 Commission Report. [9/11 Commission, 5/18/2004 pdf file; 9/11 Commission, 7/24/2004, pp. 293, 305] However, contradicting this claim, a number of emergency responders will recall arriving at the EOC before it is evacuated, to serve as representatives for their agencies. [City of New York, 10/11/2001; City of New York, 10/25/2001; City of New York, 12/4/2001; Journal of Emergency Medical Services, 9/2011, pp. 42 pdf file]
Staffers Are Initially Slow to Leave - Personnel reportedly do not initially respond to the evacuation order with a sense of urgency. They “calmly collected personal belongings and began removing OEM records,” a report by the Mineta Transportation Institute will state. But they are subsequently “urged to abandon everything and leave the building quickly.” [Jenkins and Edwards-Winslow, 9/2003, pp. 16 pdf file] After evacuating from the EOC, they assemble in the lobby of WTC 7 and await further instructions over radio. [Bylicki, 6/19/2003] Most of them think they are only temporarily abandoning their facility and expect to return to it later in the day. They do not anticipate WTC 7 being affected by fires (see 4:10 p.m. September 11, 2001) and then collapsing late this afternoon (see (5:20 p.m.) September 11, 2001). [Wachtendorf, 2004, pp. 84]
Fire Commissioner Will Be Surprised That the Center Is Evacuated - Fire Commissioner Thomas Von Essen will be surprised when he finds that the EOC has been evacuated, since the center was designed for dealing with a crisis like the one currently taking place. “I thought that was where we should all be because that’s what [it] was built for,” he will comment. He will arrive at WTC 7 looking for Mayor Rudolph Giuliani shortly before 9:59 a.m., when the South Tower collapses (see 9:59 a.m. September 11, 2001). When he learns that the EOC has been evacuated, he will think: “How ridiculous. We’ve got a 13-million-dollar command center and we can’t even use it.” He will say in frustration: “How can we be evacuating OEM? We really need it now.” [Essen, 2002, pp. 26; Fink and Mathias, 2002, pp. 230]
Time of the Evacuation Is Unclear - It is unclear exactly when the EOC is evacuated. The order to evacuate is issued at “approximately 9:30” a.m., according to the 9/11 Commission Report. [9/11 Commission, 7/24/2004, pp. 305] But, according to a report by the National Institute of Standards of Technology, the evacuation occurs slightly later than this, at “approximately 9:44 a.m.” [National Institute of Standards and Technology, 9/2005, pp. 109] Other accounts will suggest it may even have taken place before the second attack on the WTC occurred (see (Soon After 8:46 a.m.-9:35 a.m.) September 11, 2001 and (Shortly Before 9:03 a.m.) September 11, 2001). [Barrett and Collins, 2006, pp. 34; Dylan Avery, 2007] Many people in the rest of WTC 7 left the building earlier on, around the time of the second attack (see (9:03 a.m.) September 11, 2001). [9/11 Commission, 5/18/2004 pdf file; National Institute of Standards and Technology, 9/2005, pp. 109]

Entity Tags: Office of Emergency Management, Richard Bylicki, Thomas Von Essen, Richard Rotanz, Abdo Nahmod, US Secret Service

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The OEM command bus.The OEM command bus. [Source: New York City Office of Emergency Management]Personnel from New York’s Office of Emergency Management (OEM) use the OEM command bus as their command post after their command center in World Trade Center Building 7 has been evacuated. [Jenkins and Edwards-Winslow, 9/2003, pp. 20 pdf file; 9/11 Commission, 4/7/2004] The OEM command center, on the 23rd floor of WTC 7, is intended to coordinate the city’s response to emergencies, including terrorist attacks. [New York Times, 6/8/1999] However, it was evacuated at around 9:30 a.m., according to the 9/11 Commission Report, although other accounts will suggest the evacuation occurs at an earlier or later time (see (Soon After 8:46 a.m.-9:35 a.m.) September 11, 2001, (Shortly Before 9:03 a.m.) September 11, 2001, and (9:30 a.m.) September 11, 2001). [9/11 Commission, 7/24/2004, pp. 305; National Institute of Standards and Technology, 9/2005, pp. 109; Barrett and Collins, 2006, pp. 34] OEM personnel therefore now have to operate from the their command bus. [Jenkins and Edwards-Winslow, 9/2003, pp. 20 pdf file; 9/11 Commission, 4/7/2004] The bus, known as the Interagency Command Center (ICC), is equipped with computers, a state-of-the-art communications system, and on-board electrical generation. It also has its own conference room. [Wall Street Journal, 9/21/2001; Jenkins and Edwards-Winslow, 9/2003, pp. 20 pdf file; Power, 2004, pp. 172] It can be deployed to the location of a major emergency, to serve as an on-scene command post for coordinating interagency operations and communications. [City of New York, 2001, pp. 8 pdf file] The OEM’s emergency plans and vital records are kept in WTC 7, and, due to the evacuation of the command center, are now inaccessible. Fortunately, after they move to the ICC, OEM personnel are able to implement their emergency action plans from memory and by utilizing their combined knowledge. [Jenkins and Edwards-Winslow, 9/2003, pp. 20 pdf file] After the Twin Towers collapse, the ICC will move to a firehouse on Houston Street, to provide support to Mayor Rudolph Giuliani and his entourage, who have set up a temporary headquarters at that location (see (After 10:28 a.m.-12:00 pm.) September 11, 2001). [Wall Street Journal, 9/21/2001; 9/11 Commission, 4/7/2004]

Entity Tags: Office of Emergency Management

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

At some point after the White House is ordered to evacuate and while Air Force One is preparing to take off in Florida, counterterrorism “tsar” Richard Clarke activates the Continuity of Government (COG) plan. The coordinator for Continuity of Government has joined Clarke in the White House Situation Room. Clarke asks, “How do I activate COG?” Recalling this conversation, he will later comment, “In the exercises we had done, the person playing the president had always given that order.” But the coordinator replies, “You tell me to do it.” Soon after, Clarke instructs him, “Go.” [Clarke, 2004, pp. 8]
First Time COG Plan Activated - The Continuity of Government plan, which dates back to the Reagan administration, had originally prepared to set up a new leadership for the US in the event of a nuclear war. This is apparently the first time it has ever been put into effect. Clarke will recall, “Every federal agency was ordered… to activate an alternative command post, an alternative headquarters outside of Washington, DC, and to staff it as soon as possible.” Cabinet officers are dispatched around the country, and people in Congress are taken to alternative locations.
Clarke Regularly Particiated in COG Exercises - Since the 1980s, Clarke has in fact been a regular participant in secret COG exercises that rehearsed this plan (see (1984-2004)). [Washington Post, 4/7/2004; ABC News, 4/25/2004] Vice President Dick Cheney and Secretary of Defense Donald Rumsfeld also participated (see 1981-1992). [Atlantic Monthly, 3/2004] Kenneth Duberstein, formerly President Reagan’s White House chief of staff, who took part in the exercises as well, will recall: “I said to myself, as we proceeded through the day [of 9/11], ‘It’s working.’ All those days of patriotic duty were coming back and they were working.” According to ABC News, “If executive branch leaders and large numbers of congressmen had been killed in an attack on the United States, the plan could have gone further, officials suggest, perhaps even with non-elected leaders of the United States taking control and declaring martial law.” [ABC News, 4/25/2004] According to a White House timeline of the events of 9/11, it is in fact Cheney that “orders implementation of Continuity of Government and Continuity of Operations procedures,” at 9:55 a.m., although, according to the Washington Post, Cheney only “officially implemented the emergency Continuity of Government orders,” rather than activating the plan. [White House, 2001; Washington Post, 1/27/2002]

Entity Tags: Richard A. Clarke, Continuity of Government, White House, Kenneth Duberstein

Timeline Tags: Complete 911 Timeline, 9/11 Timeline, Civil Liberties

After spending about 40 minutes at the disaster scene, on the World Trade Center site, New York City Mayor Rudolph Giuliani relocates to a small office building at 75 Barclay Street, about two blocks from the WTC, hoping to establish a command post there. His usual command center, in WTC 7, was evacuated at around 9:30 a.m. (see (9:30 a.m.) September 11, 2001). With him are several colleagues, including Police Commissioner Bernard Kerik and Office of Emergency Management Director Richard Sheirer. [Kerik, 2001, pp. 334; Giuliani, 2002, pp. 10; 9/11 Commission, 5/18/2004 pdf file; 9/11 Commission, 5/19/2004; Barrett and Collins, 2006, pp. 10] While at Barclay Street, Giuliani is able to get in touch with the White House, and speaks to Chris Henick, the deputy political director to President Bush (see 9:58 a.m. September 11, 2001). Immediately afterwards, he receives a phone call from Vice President Cheney, though this is cut off before either one is able to speak. Giuliani also claims he is given advance warning of the South Tower’s collapse while at this command post (see (Before 9:59 a.m.) September 11, 2001). After the South Tower collapses outside, Giuliani and his colleagues all decide to evacuate, going through the basement into a neighboring building, 100 Church Street. They will then leave this and head north, being joined by cameras and press. [Fink and Mathias, 2002, pp. 112; 9/11 Commission, 5/19/2004; Barrett and Collins, 2006, pp. 348]

Entity Tags: Rudolph (“Rudy”) Giuliani, Bernard Kerik, Richard Sheirer

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The South Tower of the World Trade Center collapses.The South Tower of the World Trade Center collapses. [Source: Associated Press]The South Tower of the World Trade Center tilts to the southeast and then collapses. It was hit by Flight 175 at 9:03 a.m., 56 minutes earlier (see 9:03 a.m. September 11, 2001). [Washington Post, 9/12/2001; New York Times, 9/12/2001; MSNBC, 9/22/2001; USA Today, 12/20/2001; Associated Press, 8/21/2002; ABC News, 9/11/2002; National Institute of Standards and Technology, 9/2005, pp. 44] The first sign of the collapse is visible on floor 82. [National Institute of Standards and Technology, 9/2005, pp. 87] The angle of the tilt will be disputed after 9/11 (see September-November 2005), as will the time it takes the towers to fall to the ground (see September 12, 2001-September 2005). [Scientific American, 10/9/2001; Eagar and Musso, 12/2001; PBS Nova, 5/2002; National Institute of Standards and Technology, 8/30/2006]

Entity Tags: World Trade Center

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Steve Lanoce.Steve Lanoce. [Source: Gamezebo]A group of police officers tries to enter World Trade Center Building 7 in order to get out of the WTC plaza, but they find the door is locked and the building is on fire. The seven officers are members of New York Police Department’s Emergency Service Unit (ESU). They were about 60 yards north of the South Tower when it collapsed, at 9:59 a.m. (see 9:59 a.m. September 11, 2001). When the dust began to clear, they made their way to the WTC plaza. But as they then tried to get out of the plaza, they found that every corner they ran to was blocked.
Officers Find the Door to WTC 7 Is Locked - The ESU officers now notice the bridge that leads from the plaza to WTC 7, and wonder if they can get out of the plaza by entering WTC 7 and then making their way down to the street below. [Tactical Edge, 6/2002 pdf file; Appel, 2009, pp. 99-100] WTC 7, a 47-story office building, is located to the north of the Twin Towers. It is linked to the main WTC complex by a glass-enclosed pedestrian bridge at the third-floor level. [Federal Emergency Management Agency, 5/1/2002, pp. 5-2; National Institute of Standards and Technology, 11/2008, pp. 2] The officers walk across the bridge, but when they reach the door that leads into WTC 7 they find it is locked. “Why anyone would lock a door under these circumstances was anybody’s guess,” author Anthea Appel will later comment.
Officers Find WTC 7 Is on Fire - One officer, Steve Lanoce, decides to try to break the door. He takes out his handgun and fires a shot at the bottom glass pane of the door. The glass, however, turns out to be bullet-proof and cracks but does not break. Furthermore, Lanoce’s shot sets off the burglar alarm in WTC 7. Fortunately, Lanoce’s colleagues are able to kick in the cracked glass and create an opening large enough to crawl through. They find, though, that the building on the other side of the door is on fire and they have to jump back to avoid the flames. [Tactical Edge, 6/2002 pdf file; Appel, 2009, pp. 99-100]
WTC 7 Suffered Only Minor Damage When the South Tower Collapsed - The cause of the fire in WTC 7 is unclear. The National Institute of Standards and Technology, which will investigate the collapse of WTC 7 that occurs later today (see (5:20 p.m.) September 11, 2001), will state that the building suffered only minor damage when the South Tower collapsed. “A few windows on lower floors of the south face of WTC 7 were broken, and dust and small debris were deposited in the third-floor lobby,” it will describe. However, it will add, “None of the large pieces of debris from [the South Tower] hit WTC 7 because of the large distance between the two buildings and there was no evidence of structural damage to WTC 7.” [National Institute of Standards and Technology, 11/2008, pp. 16] The ESU officers then notice a stream of people making their way out of the North Tower. They therefore abandon their plan to get out of the WTC complex and instead go to help evacuate the civilians from the tower. [Tactical Edge, 6/2002 pdf file; Appel, 2009, pp. 101]

Entity Tags: Steve Lanoce, World Trade Center, New York City Police Department

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Damage to the southwest corner of WTC 7.Damage to the southwest corner of WTC 7. [Source: Arquelio Galarza]World Trade Center Building 7 (WTC 7) suffers some damage, caused by debris from the collapse of the north WTC tower, according to later official reports. [Federal Emergency Management Agency, 5/1/2002, pp. 5-16; National Institute of Standards and Technology, 11/2008, pp. 16]
WTC 7 Undamaged by South Tower Collapse - WTC 7 is a 47-story office building located 370 feet north of the North Tower (WTC 1). In the final report of its investigation into WTC 7’s collapse, published in November 2008 (see November 20, 2008), the National Institute of Standards and Technology (NIST) will state that although a few windows on the lower floors of WTC 7’s south face were broken when the South Tower (WTC 2) collapsed at 9:59 a.m. (see 9:59 a.m. September 11, 2001), “None of the large pieces of debris from WTC 2 hit WTC 7, because of the large distance between the two buildings,” and there is “no evidence of structural damage to WTC 7” as a result of the South Tower’s collapse.
Debris Reportedly Damages Exterior Columns - However, when the North Tower collapses (see 10:28 a.m. September 11, 2001), some fragments of debris are “forcibly ejected” from it, and travel “distances up to hundreds of meters.” According to NIST, pieces of this debris “hit WTC 7, severing six columns on floors 7 through 17 on the south face and one column on the west face near the southwest corner.” NIST will add that the debris also causes “structural damage between floor 44 and the roof,” and breaks a large number of windows on WTC 7’s south face.
Building Core Undamaged - However, NIST will state, based on “photographic evidence, witness accounts, and engineering judgment, it is likely that the structural damage (steel and floor slabs) did not penetrate beyond the perimeter of the building core. At the southwest corner, the structural damage extended only about one-third of the distance from the exterior wall to the building core.” NIST will comment, “Compared to the airplane impact damage to the WTC towers, there was relatively little damage to the interior of WTC 7.” There is also “no superficial or structural damage” to WTC 7’s north and east faces. And the sprayed fire resistive material that has been applied to the building’s steel columns, girders, and beams is only damaged in the “immediate vicinity of the WTC 1 debris impact.” NIST will admit, however, that there are “uncertainties” in its accounting of the events leading up to the collapse of WTC 7, because “the remains of all the WTC buildings were disposed of before Congressional action and funding was available for [its] investigation [of the WTC collapses] to begin” (see Shortly After September 11, 2001 and September 12-October 2001). [National Institute of Standards and Technology, 8/21/2008; National Institute of Standards and Technology, 11/2008, pp. 15-16]
FEMA Describes WTC 7 Damage - According to an earlier report on the collapse of WTC 7, published by the Federal Emergency Management Agency (FEMA) in May 2002 (see May 1, 2002), at that time, the “extent and severity of the resulting damage to WTC 7” when the North Tower collapses “are currently unknown.” But based on “photographic evidence and eyewitness accounts,” it is “assumed that the south side of the building was damaged to some degree.” FEMA’s report will state: “It does not appear that the collapse of WTC 1 affected the roof, or the east, west, and north elevations of WTC 7 in any significant way. However, there was damage to the southwest corner of WTC 7 at approximately floors 8 to 20, 24, 25, and 39 to 46.” The report will add: “According to firefighters’ eyewitness accounts from outside of the building, approximately floors 8-18 were damaged to some degree. Other eyewitness accounts relate that there was additional damage to the south elevation.” [Federal Emergency Management Agency, 5/1/2002, pp. 5-16, 5-20]
Structural Damage Not Responsible for Collapse - WTC 7 will collapse at 5:20 p.m. this afternoon (see (5:20 p.m.) September 11, 2001). [National Institute of Standards and Technology, 8/21/2008] However, NIST will conclude that the structural damage the building suffers plays no role in causing it to come down. NIST will state, “Other than initiating the fires in WTC 7, the damage from the debris from WTC 1 had little effect on initiating the collapse of WTC 7.” [National Institute of Standards and Technology, 11/2008, pp. xxxvii] WTC 7 suffers fires on some floors, which are reportedly initiated by debris from the collapse of the North Tower (see (10:28 a.m.-5:20 p.m.) September 11, 2001). According to NIST, it is these fires, “rather than the structural damage that resulted from the impacts” of debris, which “initiated the building’s collapse.” [National Institute of Standards and Technology, 8/21/2008]

Entity Tags: World Trade Center, National Institute of Standards and Technology, Federal Emergency Management Agency

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

According to Captain Michael Currid, the sergeant at arms for the Uniformed Fire Officers Association, some time after the collapse of the North Tower, he sees four or five fire companies trying to extinguish fires in Building 7 of the WTC. Someone from the city’s Office of Emergency Management tells him that WTC 7 is in serious danger of collapse. Currid says, “The consensus was that it was basically a lost cause and we should not lose anyone else trying to save it.” Along with some others, he goes inside WTC 7 and yells up the stairwells to the fire fighters, “Drop everything and get out!” [Murphy, 2002, pp. 175-176] However, other accounts contradict this, claiming that no attempt is made to fight the fires in WTC 7 (see (11:30 a.m.) September 11, 2001). One report later claims, “Given the limited water supply and the first strategic priority, which was to search for survivors in the rubble, FDNY did not fight the fires [in WTC 7].” [Fire Engineering, 9/2002] And a 2002 government report says, “the firefighters made the decision fairly early on not to attempt to fight the fires, due in part to the damage to WTC 7 from the collapsing towers.” [Federal Emergency Management Agency, 5/1/2002, pp. 5-21] Building 7 eventually collapses late in the afternoon of 9/11 (see (5:20 p.m.) September 11, 2001).

Entity Tags: World Trade Center, Office of Emergency Management, Michael Currid

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Allan Dodds Frank.Allan Dodds Frank. [Source: CNN]A CNN correspondent incorrectly suggests that a third skyscraper may have recently collapsed in New York. Reporting from Lower Manhattan, Allan Dodds Frank describes: “[J]ust two or three minutes ago there was yet another collapse or explosion. I’m now out of sight, a Good Samaritan has taken me in on Duane Street. But at a quarter to 11, there was another collapse or explosion following the 10:30 collapse of the second tower. And a firefighter who rushed by us estimated that 50 stories went down. The street filled with smoke. It was like a forest fire roaring down a canyon.” [CNN, 9/11/2001] A third tower—the 47-story World Trade Center Building 7—does collapse on this day. It will not come down, however, until 5:20 in the afternoon (see (5:20 p.m.) September 11, 2001). [Washington Post, 9/12/2001; New York Times, 11/29/2001]

Entity Tags: Allan Dodds Frank

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The New York Fire Department (FDNY) assigns a chief officer to take charge of operations at WTC Building 7. The chief is initially ordered to put out the fires there. It is determined around this time that there are fires on floors 6-8, 17, 21 and 30. However, there are problems with the water supply: There is no water coming out of the hydrant system nearby, and an FDNY chief officer who has been in WTC 7 says he opened a standpipe on the 4th floor of one stairway, but found no water in the standpipe system. This should not be a problem though, as two or three FDNY fireboats have been tied up on the Hudson shore, specifically to provide water to the site, and lines are already being stretched up to the WTC area. However, as the National Institute of Standards and Technology (NIST) will later report, “According to the FDNY first-person interviews, water was never an issue at WTC 7 since firefighting was never started in the building. When the Chief Officer in charge of WTC 7 got to Barclay Street and West Broadway, numerous firefighters and officers were coming out of WTC 7. These firefighters indicated that several blocks needed to be cleared around WTC 7 because they thought that the building was going to collapse.” [Firehouse (.com), 9/17/2001; Time Out New York, 9/27/2001; National Institute of Standards and Technology, 9/2005, pp. 110-111] However, one fire captain later claims to have seen numerous firefighters trying to extinguish fires in WTC 7 at some unspecified time after the North Tower collapsed, until they were instructed to stop doing so (see After 10:28 a.m. September 11, 2001).

Entity Tags: New York City Fire Department

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

An engineer at the World Trade Center site correctly predicts that WTC Building 7 is going to collapse. Deputy Chief Peter Hayden of the New York Fire Department will later recall: “We had our special operations people set up surveying instruments to monitor and see if there was any movement of [WTC 7]. We were concerned of the possibility of collapse of the building. And we had a discussion with one particular engineer there, and we asked him, if we allowed it to burn could we anticipate a collapse, and if so, how soon?” The engineer apparently predicts correctly that WTC 7 will collapse and also the time it will take before it comes down. Hayden will recall, “He said yes and he gave an approximate time of five to six hours, which was pretty much right on the money because the building collapsed about 5 o’clock that afternoon.” Hayden will not reveal the name of this engineer. [BBC, 7/6/2008; Aegis Insurance Services, Inc. v. 7 World Trade Center Company, LP, 12/4/2013 pdf file] WTC 7 will collapse at about 5:20 p.m. (see (5:20 p.m.) September 11, 2001), indicating that the engineer makes his prediction around midday or shortly after. [CNN, 9/12/2001]

Entity Tags: Peter Hayden

Timeline Tags: Complete 911 Timeline

At some point during the afternoon of 9/11, WTC leaseholder Larry Silverstein receives a phone call from the Fire Department commander, where they discuss the state of Building 7 of the WTC complex. Silverstein will discuss this call in a PBS documentary broadcast in 2002, saying that he told the commander, “You know, we’ve had such terrible loss of life, maybe the smartest thing to do is pull it. And they made that decision to pull and then we watched the building collapse.” [PBS, 9/10/2002] Some people suggest that by “pull it” Silverstein meant the deliberate demolition of the building. But a spokesman for Silverstein states that he was expressing “his view that the most important thing was to protect the safety of those firefighters, including, if necessary, to have them withdraw from the building.” [US Department of State, 9/16/2005] Yet this claim is contradicted by some accounts, according to which firefighters decided early on not to attempt fighting the fires in WTC 7 (see After 10:28 a.m. September 11, 2001)(see (11:30 a.m.) September 11, 2001). According to Haaretz, “In the afternoon of September 11, the Fire Department informed him that the smaller 7 World Trade Center building, which he owned, was going to collapse.” [Ha'aretz, 11/21/2001] Building 7 eventually collapses at around 5:20 in the afternoon (see (5:20 p.m.) September 11, 2001).

Entity Tags: Larry Silverstein

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Barry Jennings, a City Housing Authority worker who had become trapped in World Trade Center Building 7, finds the building’s lobby in ruins as he is being rescued from it, and steps over what feels to him like dead bodies. [Dylan Avery, 2007] After the first plane hit the WTC, Jennings had gone up to the emergency command center on the 23rd floor of WTC 7 along with Michael Hess, New York’s corporation counsel (see (Shortly Before 9:03 a.m.) September 11, 2001). [Associated Press, 9/11/2001; Dylan Avery, 2007] After heading down the stairs, the two men became trapped on the building’s eighth floor (see (Between 9:15 a.m. and 12:00 p.m.) September 11, 2001). Some time later, firefighters come into WTC 7 to help the two men out of the building. [UPN 9, 9/11/2001; National Institute of Standards and Technology, 9/2005, pp. 109-110]
Lobby Is 'Total Ruins' - According to Jennings, when he gets down to the lobby, he is astonished to find it totally ruined. In a 2007 interview he will recall: “[W]hen I came in there, the lobby had nice escalators. It was a huge lobby.” But reaching it again, he asks the firefighter who is escorting him, “Where are we?” and the firefighter answers, “This was the lobby.” Jennings finds this “unbelievable,” and says, “You gotta be kidding me.” He will describe the lobby as being “total ruins.”
'Stepping over People' - Furthermore, Jennings steps over what may be dead bodies in the lobby. He will say: “[T]he firefighter that took us down kept saying, ‘Do not look down,’ and I kept saying, ‘Why is that?’ [He said,] ‘Do not look down.’ And, stepping over people. And you know you could feel when you’re stepping over people.” [Dylan Avery, 2007] Yet most people were evacuated from WTC 7 around 9:03 a.m., if not earlier (see (9:03 a.m.) September 11, 2001). [National Institute of Standards and Technology, 9/2005, pp. 109] The very latest that people left the building, according to official accounts, was 9:30 a.m. (see (9:30 a.m.) September 11, 2001). [9/11 Commission, 7/24/2004, pp. 305] In a later interview, Jennings will clarify: “I never saw dead bodies.… [I]t felt like I was stepping over them but I never saw them.” The BBC will say, “There is no evidence that anyone died in Tower 7 on 9/11.” [BBC, 7/4/2008; BBC, 7/6/2008] According to the National Institute of Standards and Technology (NIST), firefighters lead Jennings and Hess out of WTC 7 at around 12:10 p.m. to 12:15 p.m. (see 12:10 p.m.-12:15 p.m. September 11, 2001). [National Institute of Standards and Technology, 6/2004, pp. L-18]

Entity Tags: Michael Hess, Barry Jennings

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Richard Rotanz.Richard Rotanz. [Source: University of Delaware]Richard Rotanz, the deputy director of New York’s Office of Emergency Management, assesses the state of World Trade Center Building 7 and sees significant damage inside the building. [BBC, 7/6/2008; BBC, 10/17/2008] WTC 7 was damaged by the debris when the North Tower of the WTC collapsed at 10:28 a.m. (see 10:28 a.m. September 11, 2001). [National Institute of Standards and Technology, 11/2008, pp. 16] At around 12:30 p.m., according to the BBC, Rotanz and some other officials—whose identities are unstated—go into WTC 7 to see what condition the building is in. “At the time the building wasn’t safe, but we had to make an assessment just the same,” Rotanz will later tell the BBC. He will describe what he observes inside WTC 7, saying: “You could hear the building creak above us. You could hear things fall. You could hear the fire burning. You could see columns just hanging from the floors, gaping holes in the floors up above us.” He also sees “an elevator car that was blown out of its shaft” and is now “down the hall.” [BBC, 7/6/2008; BBC, 10/17/2008] The elevator car is “30 or 40 feet away from where the elevator shaft once was,” according to another account. [Aegis Insurance Services, Inc. v. 7 World Trade Center Company, LP, 12/4/2013 pdf file] Rotanz and those with him soon leave the building. “We didn’t spend that long” inside WTC 7, Rotanz will say. Rotanz has also observed significant damage to the exterior of WTC 7 (see (After 10:28 a.m.) September 11, 2001). [BBC, 10/17/2008] At around 2:30 p.m., senior firefighters will make the decision to abandon the possibility of fighting the fires in WTC 7 (see (2:00 p.m.-2:30 p.m.) September 11, 2001). The building will collapse at around 5:20 p.m. (see (5:20 p.m.) September 11, 2001). [National Institute of Standards and Technology, 9/2005, pp. 111]

Entity Tags: Richard Rotanz, World Trade Center

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The chief fire officer who has been assigned to take charge of operations at WTC Building 7 meets with his command officer, to discuss the condition of this building and the fire department’s capabilities for controlling the fires in it. A deputy fire chief who has just been in WTC 7, inspecting up to its 7th or 8th floor, reports that there was a lot of fire inside and the stairway was filling with smoke. The fire chiefs discuss the situation and identify the following conditions:
bullet WTC 7 has suffered damage caused by falling debris from the Twin Towers, and they are uncertain about its structural stability.
bullet There are large fires on at least six floors.
bullet They do not have enough equipment available for conducting operations in the building, such as hoses, standpipe kits, and handie-talkies.
bullet There is no water immediately available for fighting the fires. (However, this concern is apparently contradicted by reports that two or three fireboats are moored nearby, specifically to provide water-pumping capacity for the WTC site.)
Therefore, at around 2:30 p.m., fire officers decide to completely abandon WTC 7 and a final order is given to evacuate the site. Firefighters and other emergency workers will be withdrawn from the surrounding area (see (4:30 p.m.) September 11, 2001), and Building 7 collapses later in the afternoon (see (5:20 p.m.) September 11, 2001). [Firehouse (.com), 9/17/2001; National Institute of Standards and Technology, 9/2005, pp. 110-111]

Entity Tags: New York City Fire Department, World Trade Center

Timeline Tags: Complete 911 Timeline, 9/11 Timeline


Several small fires burn inside World Trade Center Building 7.
Several small fires burn inside World Trade Center Building 7. [Source: New York City Police Department]World Trade Center Building 7 is reported to be on fire. [CNN, 9/12/2001]

Entity Tags: World Trade Center

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Building 7 of the World Trade Center, located across the street from the Twin Towers, caught fire after the initial attacks on the WTC. [CNN, 9/12/2001] By 4:10 in the afternoon, CNN had reported it being on fire (see 4:10 p.m. September 11, 2001). Subsequently it is reported that WTC 7 is in danger of collapsing or may have already collapsed. At around 4:15 p.m., CNN reports, “We’re getting information that one of the other buildings… Building 7… is on fire and has either collapsed or is collapsing… now we’re told there is a fire there and that the building may collapse as well.” About 12 minutes later, BBC reporter Greg Barrow, who is in New York, appears on the BBC radio channel Five Live and says, “We are hearing reports from local media that another building may have caught light and is in danger of collapse.” He adds, “I’m not sure if it has yet collapsed but the report we have is talking about Building 7.” Around this time, the area around Building 7 is being evacuated, apparently because senior firefighters have determined it is in danger of collapsing (see (4:30 p.m.) September 11, 2001). At 4:53, based on the earlier reports, the Radio Five Live show’s presenter will incorrectly claim that Building 7 has already collapsed, saying, “Twenty-five minutes ago we had reports from Greg Barrow that another large building has collapsed just over an hour ago.” [BBC, 3/2/2007] Starting at 4:54, BBC television will also begin reporting that Building 7 has already collapsed (see 4:54 p.m.-5:10 p.m. September 11, 2001). In fact, it does not do so until 5:20 (see (5:20 p.m.) September 11, 2001).

Entity Tags: World Trade Center, CNN, British Broadcasting Corporation

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

According to numerous rescue and recovery workers, the area around World Trade Center Building 7 is evacuated at this time. [Kansas City Star, 3/28/2004] For example:
bullet Emergency medical technician Joseph Fortis says, “They pulled us all back at the time, almost about an hour before it, because they were sure—they knew it was going to come down, but they weren’t sure.” [City of New York, 11/9/2001]
bullet Firefighter Edward Kennedy says, “I remember [Chief Visconti] screaming about 7, No. 7, that they wanted everybody away from 7 because 7 was definitely going to collapse.” [City of New York, 1/17/2002]
bullet Firefighter Vincent Massa: “They were concerned about seven coming down, and they kept changing us, establishing a collapse zone and backing us up.” [City of New York, 12/4/2001]
bullet Firefighter Tiernach Cassidy: “[B]uilding seven was in eminent collapse. They blew the horns. They said everyone clear the area until we got that last civilian out.” [City of New York, 12/30/2001]
bullet Battalion Fire Chief John Norman: “I was detailed to make sure the collapse zone for 7 WTC had been set up and was being maintained.” [Fire Engineering, 10/2002]
Several New York Fire Department chief officers, who have surveyed Building 7, have apparently determined it is in danger of collapsing. [Fire Engineering, 9/2002] For example, Fire Chief Daniel Nigro explains their decision-making process, saying: “A number of fire officers and companies assessed the damage to the building. The appraisals indicated that the building’s integrity was in serious doubt. I issued the orders to pull back the firefighters and define the collapse zone.” [Fire Engineering, 9/2002] Fire Chief Frank Fellini says, “We were concerned that the fires on several floors and the missing steel would result in the building collapsing.” [City of New York, 12/3/2001] And Fire Captain Ray Goldbach says, “[W]e made a decision to take all of our units out of 7 World Trade Center because there was a potential for collapse.” [City of New York, 10/24/2001] However, some firefighters seem surprised at this decision. When Fire Commissioner Thomas Von Essen is making his way through hundreds of firefighters who are being held away from the WTC site, he hears complaints like, “It could take days for that building to come down,” and, “Why don’t they let us in there?” [Essen, 2002, pp. 45] When Deputy Fire Chief Nick Visconti is instructing firefighters to evacuate the area, one comment he receives is, “[O]h, that building is never coming down, that didn’t get hit by a plane, why isn’t somebody in there putting the fire out?” [Firehouse Magazine, 9/9/2002]

Entity Tags: Joseph Fortis, Daniel Nigro, Nick Visconti, Ray Goldbach, Tiernach Cassidy, Frank Fellini, Thomas Von Essen, Edward Kennedy (firefighter), Vincent Massa, John Norman, World Trade Center

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The BBC’s Jane Standley, reporting the collapse of WTC 7 while it is visible still standing behind her.The BBC’s Jane Standley, reporting the collapse of WTC 7 while it is visible still standing behind her. [Source: BBC]Several times, the BBC reports that Building 7 of the World Trade Center has collapsed, when it is in fact still standing. At 4:54 p.m., its domestic television news channel, BBC News 24, reports, “We’re now being told that yet another enormous building has collapsed… it is the 47-story Salomon Brothers building [i.e. WTC 7].” Three minutes later, its international channel, BBC World, reports, “We’ve got some news just coming in actually that the Salomon brothers building in New York right in the heart of Manhattan has also collapsed.” Then, at about 5:10 p.m., BBC World repeats the claim: “I was talking a few moments ago about the Salomon building collapsing and indeed it has… it seems this wasn’t the result of a new attack but because the building had been weakened during this morning’s attack.” Yet WTC 7 does not collapse until 5:20 p.m., over 25 minutes after the BBC first reported it (see (5:20 p.m.) September 11, 2001). The BBC’s live shot even shows the building still standing in the background, while its collapse is being reported. When these reports come to light early in 2007, Richard Porter, the head of news for BBC World, will suggest the error was due to the “confusing and chaotic situation on the ground” on 9/11. [BBC, 3/2/2007] Starting around 4:15 p.m., CNN and other news outlets had been reporting that WTC 7 was in danger of collapsing or may already have collapsed (see (4:15 p.m.-4:27 p.m.) September 11, 2001).

Entity Tags: World Trade Center, British Broadcasting Corporation

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

A four-image progression of photos showing World Trade Center Building 7 collapsing down into its footprint.A four-image progression of photos showing World Trade Center Building 7 collapsing down into its footprint. [Source: unknown] (click image to enlarge)Building 7 of the World Trade Center complex, a 47-story tower, collapses. No one is killed. [CNN, 9/12/2001; Washington Post, 9/12/2001; MSNBC, 9/22/2001; Associated Press, 8/21/2002] It collapses in 6.6 seconds, which is just 0.6 of a second longer than it would have taken a free-falling object dropped from its roof to hit the ground. [Deseret Morning News, 11/10/2005] Many questions will arise over the cause of its collapse in the coming months and years. Building 7, which was not hit by an airplane, is the first modern, steel-reinforced high-rise to collapse because of fire. [Chicago Tribune, 11/29/2001; Stanford Report, 12/5/2001; New York Times, 3/2/2002] Some will later suggest that the diesel fuel stored in several tanks on the premises may have contributed to the building’s collapse. The building contained a 6,000-gallon tank between its first and second floors and another four tanks, holding as much as 36,000 gallons, below ground level. There were also three smaller tanks on higher floors. [Chicago Tribune, 11/29/2001; New York Times, 3/2/2002; New York Observer, 3/25/2002; Federal Emergency Management Agency, 5/1/2002, pp. 1-17] However, the cause of the collapse is uncertain. A 2002 government report will conclude: “The specifics of the fires in WTC 7 and how they caused the building to collapse remain unknown at this time. Although the total diesel fuel on the premises contained massive potential energy, the best hypothesis has only a low probability of occurrence.” [Federal Emergency Management Agency, 5/1/2002, pp. 1-17] Some reports indicate that the building may have been deliberately destroyed. Shortly after the collapse, CBS News anchor Dan Rather comments that the collapse is “reminiscent of… when a building was deliberately destroyed by well-placed dynamite to knock it down.” [CBS News, 9/11/2001] And moments after the collapse, MSNBC’s Brian Williams joins David Restuccio, an FDNY lieutenant, by phone to ask him about the collapse. “You guys knew this was coming all day?” asks Williams. Restuccio replies: “We had heard reports that the building was unstable, and that it would eventually need to come down on its own, or it would be taken down. I would imagine it came down on its own.” Restuccio does not explain what he means by “it would be taken down.” [MSNBC, 9/11/2001]

Entity Tags: Dan Rather, World Trade Center, David Restuccio

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Before 9/11, New York City was scheduled to have a major terrorism training exercise on this day, in a large commercial warehouse on the Hudson River. Called Tripod, it was intended to test how well the city’s Office of Emergency Management (OEM) could administer treatment in the event of a biological-terrorism attack. More than 1,000 Police Academy cadets and Fire Department trainees were recruited to act the parts of terrified civilians afflicted with a range of medical conditions. Various individuals were invited to watch, including Mayor Rudolph Giuliani, the police and fire commissioners, and representatives of the FBI and the Federal Emergency Management Agency (FEMA). Presumably many have already arrived for the exercise when the 9/11 attacks occur (see 7:00 a.m. -9:03 a.m. September 11, 2001). Because Pier 92, where Tripod was due to take place, has been set up ready for the exercise, OEM staff are able to move there and quickly convert it into a large emergency operations center when their original command center (in WTC Building 7) is evacuated and later destroyed during 9/11. Thus, within 31 hours of the attacks, OEM has a functional facility able to manage the search and rescue effort, just four miles north-northwest of the WTC site. [New York Magazine, 10/15/2001; Jenkins and Edwards-Winslow, 9/2003, pp. 20 pdf file; 9/11 Commission, 5/19/2004] Tripod is the follow-up to a previous training exercise in New York, called RED Ex (see May 11, 2001). [New York Sun, 12/20/2003] Due to the 9/11 attacks, Tripod is called off, but will eventually take place on May 22, 2002. [City of New York, 5/22/2002]

Entity Tags: Federal Emergency Management Agency, Office of Emergency Management, Rudolph (“Rudy”) Giuliani, Tripod, Federal Bureau of Investigation

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

E Team crisis management software.E Team crisis management software. [Source: Police Magazine]New York City’s Office of Emergency Management (OEM) is much aided in its recovery efforts at Ground Zero when it starts using a little-known piece of emergency management software, which it only purchased last month and that was originally going to be launched on September 17. [Wall Street Journal, 10/23/2001; Wired News, 11/2/2001] The software, called E Team, helps organizations to “prepare for, respond to, and recover from disasters and emergencies of all types.” [California Technology Ventures, 10/16/2001] It was created by E Team Inc., a company based in Canoga Park, California. [e-ProWire, 5/22/2002] The New York City OEM only bought E Team in August (see August 2001). It installed the software on computers in its Emergency Operations Center in World Trade Center Building 7 (WTC 7) and intended to launch the system on September 17. [Wall Street Journal, 10/23/2001; Wired News, 11/2/2001]
Engineers Put Together New System to Manage Recovery Operation - The OEM was in contact with E Team Inc. executives within a few hours of the attacks on the WTC on September 11. [Wall Street Journal, 10/23/2001; e-ProWire, 5/22/2002] E Team Inc. employees reportedly suspected in advance that WTC 7—which housed the computers on which their software was installed—would collapse. Matt Walton, the company’s CEO, will later recall: “We knew that tower number 7 was probably not going to make it. We contacted the [New York City] mayor’s office and told them we would put up the New York databases on our own servers.” [Wired News, 11/2/2001] That night, a group of E Team Inc. engineers gathered at the company’s headquarters in Canoga Park, and put together a system on the company’s servers using data that the New York City OEM had sent to the company to prepare for the launch of the E Team system on September 17. By September 12, the engineers had the system ready for use. [Wall Street Journal, 10/23/2001]
System Goes into Operation at New Command Center - For the first couple of days after 9/11, the OEM had to coordinate its recovery efforts on paper or using e-mail, because its emergency management computer systems were destroyed when WTC 7 collapsed on the afternoon of September 11 (see (5:20 p.m.) September 11, 2001). An OEM spokesman will comment, “It became apparent that we needed very sophisticated technology to effectively handle the crisis.” [Wired News, 11/2/2001] Then, on September 14, the E Team system goes into operation at the OEM’s temporary command center at Pier 92 on the Hudson River, where several server computers have been set up to run the software and 200 workstations are connected to the system. [Wall Street Journal, 10/23/2001; e-ProWire, 5/22/2002] Troy Armstrong and John Hughes, two senior E Team Inc. employees who are distinguished emergency management professionals, are installed at the temporary command center. They are supplemented with three additional E Team Inc. employees.
System Plays Key Role in Recovery Operation - The main initial uses of E Team in response to the 9/11 attacks are resource management and situation reporting, but over time the system will also be used for incident reporting, asset tracking, action planning, and logistics. [California Technology Ventures, 10/16/2001] E Team tracks everything related to the recovery efforts at Ground Zero. It enables emergency responders to monitor the location of fires, personnel, supplies, and trucks. It also handles resource requests. [Wired News, 11/2/2001; e-ProWire, 5/22/2002] It makes the recovery operation “much more efficient,” according to Lieutenant Colonel John Flanagan of the New York Army National Guard. [Wall Street Journal, 10/23/2001] In total, more than 1,700 individuals from over 200 organizations will use the E Team system at the height of the rescue and recovery efforts. [Council of the City of New York, 8/2002, pp. 22 pdf file]

Entity Tags: John Hughes, E Team Inc., Matt Walton, John Flanagan, Troy Armstrong, Office of Emergency Management

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

A sample of WTC steel eroded and corroded due to eutectic formations.A sample of WTC steel eroded and corroded due to eutectic formations. [Source: FEMA]The Journal of the Minerals, Metals and Materials Society (JOM) reports that the examination of a beam from the remains of WTC Building 7—which collapsed late in the afternoon of 9/11 (see (5:20 p.m.) September 11, 2001)—has revealed “unexpected erosion” of the steel. The article states: “The formation of the eutectic mixture of iron oxide and iron sulfide lowers the temperature at which liquid can form in this steel. This strongly suggests that the temperatures in this region of the steel beam approached around 1,000°C, forming the eutectic liquid by a process similar to making a ‘blacksmith’s weld’ in a hand forge.” [Barnett, Biederman, and Sisson, 12/2001] The New York Times will call this “perhaps the deepest mystery uncovered in the investigation.” [New York Times, 2/2/2002] FEMA’s World Trade Center Building Performance Study, released in May 2002 (see May 1, 2002), will add that the same “unusual erosion patterns” have been observed in a sample of the remaining structural steel from one of the Twin Towers. It will state, “This sulfur-rich liquid penetrated preferentially down grain boundaries of the steel, severely weakening the beam and making it susceptible to erosion.” FEMA is unable to explain this phenomenon, saying, “The severe corrosion and subsequent erosion… are a very unusual event. No clear explanation for the source of the sulfur has been identified.… It is possible that this is the result of long-term heating in the ground following the collapse of the buildings. It is also possible that the phenomenon started prior to collapse and accelerated the weakening of the steel structure.” [Federal Emergency Management Agency, 5/1/2002, pp. C-1 - C-13] Despite FEMA’s call for further research, the National Institute of Standards and Technology (NIST) will make no mention of the eutectic formations in its final report into the WTC collapses, released in late 2005, following its three-year investigation. [National Institute of Standards and Technology, 9/2005, pp. 13]

Entity Tags: National Institute of Standards and Technology, World Trade Center, Federal Emergency Management Agency

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

World Trade Center Building 7, which collapsed late in the afternoon of 9/11, had contained two independently supplied and operated fuel systems for emergency power. The fuel had been in several storage tanks low down in the building. In March and April, two 11,700-gallon tanks that had been located under the building’s first floor loading dock and operated by Silverstein Properties are removed from the collapse site. They show no evidence of fuel leakage. FEMA says that approximately 20,000 gallons of fuel are subsequently recovered from them, which is about 85 percent of their total capacity. In early May, two 6,000-gallon tanks that had been owned by Salomon Smith Barney and were also located below the loading dock are recovered. These were always kept full for emergencies and would have been full on 9/11. Yet now they are damaged and appear to be empty. According to the National Institute of Standards and Technology (NIST), “Some fuel contamination was found in the gravel below the tanks and sand below the slab on which the tanks were mounted, but no contamination was found in the organic marine silt/clay layer underneath.” Shyam Sunder, lead investigator of NIST’s WTC investigation, will state that this “suggests that this fuel… could have been consumed in the building.” This finding “allows for the possibility, though not conclusively, that the fuel may have contributed to a fire on Floor 5” of WTC 7. [Federal Emergency Management Agency, 5/1/2002, pp. 5-15; Associated Press, 6/6/2002; Newsday, 6/6/2002; National Institute of Standards and Technology, 4/5/2005 pdf file; New York City Council, 9/8/2006 pdf file] Some people have speculated that the diesel fuel stored in WTC 7 may have played a role in its collapse (see March 2, 2002). However, FEMA says, “Although the total diesel fuel on the premises contained massive potential energy, the best hypothesis has only a low probability of occurrence.” WTC 7 housed another 6,000-gallon tank between its second and third floors, which was meant to fuel generators that would supply backup power to the mayor’s 23rd-floor emergency command center (see June 8, 1999). Currently, no data are available on the condition of this tank. [Federal Emergency Management Agency, 5/1/2002, pp. 5-16 and 5-31]

Entity Tags: World Trade Center

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

A New York Times article theorizes that diesel fuel tanks were responsible for the collapse of Building 7 of the WTC. It collapsed at 5:20 p.m. on 9/11, even though it was farther away from the Twin Towers than many other buildings that remained standing (see (5:20 p.m.) September 11, 2001). It was the first time a steel-reinforced high-rise in the US had ever collapsed in a fire. One of the fuel tanks had been installed in 1999 (see June 8, 1999) as part of a new “Command Center” for Mayor Rudolph Giuliani. [New York Times, 3/2/2002; Dow Jones Business News, 9/10/2002] However, in interviews, several Fire Department officers who were on the scene say they were not aware of any combustible liquid pool fires in WTC 7. [Fire Engineering, 9/2002] And, according to the National Institute of Standards and Technology (NIST), between 11:30 a.m. and 2:30 p.m. on 9/11, “No diesel smells [were] reported from the exterior, stairwells, or lobby areas” of WTC 7. [National Institute of Standards and Technology, 6/2004, pp. L-22] Curiously, given all the Wall Street scandals later in the year, Building 7 housed the SEC files related to numerous Wall Street investigations, as well as other federal investigative files. All the files for approximately 3,000 to 4,000 SEC cases were destroyed. Some were backed up in other places, but many were not, especially those classified as confidential. [New York Law Journal, 9/17/2001] Lost files include documents that could show the relationship between Citigroup and the WorldCom bankruptcy. [Street, 8/9/2002] The Equal Employment Opportunity Commission estimates over 10,000 cases will be affected. [New York Law Journal, 9/14/2001] The Secret Service had its largest field office, with more than 200 employees, in WTC 7 and also lost investigative files. Says one agent: “All the evidence that we stored at 7 World Trade, in all our cases, went down with the building.” [Tech TV, 7/23/2002] The IRS and Department of Defense were also tenants, along with the CIA, which, it has been revealed, had a secret office in Building 7. [CNN, 11/4/2001; New York Times, 11/4/2001; Federal Emergency Management Agency, 5/1/2002, pp. 5-2; New York Magazine, 3/20/2006] A few days later, the head of the WTC collapse investigation says he “would possibly consider examining” the collapse of Building 7, but by this time all the rubble has already been removed and destroyed. [US Congress, 3/6/2002]

Entity Tags: Larry Silverstein, Citibank, Internal Revenue Service, US Securities and Exchange Commission, Central Intelligence Agency, US Secret Service, WorldCom, World Trade Center, US Department of Defense

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

FEMA’s World Trade Center Building Performance Study.FEMA’s World Trade Center Building Performance Study. [Source: FEMA]FEMA releases its report of the WTC collapses. It concludes, “[W]ith the information and time available, the sequence of events leading to the collapse of each tower could not be definitively determined.” On Building 7: “The specifics of the fires in WTC 7 and how they caused the building to collapse remain unknown at this time.” [Federal Emergency Management Agency, 5/1/2002]

Entity Tags: World Trade Center, Federal Emergency Management Agency

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The National Institute of Standards and Technology (NIST)—an agency of the US Commerce Department’s Technology Administration—announces details of its forthcoming investigation into the collapses of the World Trade Center Twin Towers and Building 7 on 9/11. The NIST investigation aims “to investigate the building construction, the materials used, and the technical conditions that contributed to the outcome of the World Trade Center (WTC) disaster.” It also aims to examine the activities of building occupants and emergency responders on 9/11, studying such issues as emergency communications within the WTC, the movement of people during the evacuations, and issues around persons with disabilities. Leading technical experts from industry, academia, and other laboratories, alongside NIST’s own expert staff, will participate in the investigation. Expert professionals from the private sector will also be involved. Glenn Corbett, a fire science professor at John Jay College, says, “This is going to be the most extensive building disaster investigation ever performed.” [Associated Press, 8/21/2002; National Institute of Standards and Technology, 8/21/2002; National Institute of Standards and Technology, 8/3/2005] The investigation is formally authorized in October 2002, when the National Construction Safety Team Act is signed into law. The act, which gives NIST authorization to investigate major building failures in the US, is written largely as a result of the World Trade Center collapses. [National Institute of Standards and Technology, 10/2/2002; New York Times, 5/8/2003] NIST’s investigation is originally proposed to last two years, with a budget of $16 million. [National Institute of Standards and Technology, 8/21/2002] However, it eventually will last three years, with its final report into the collapses of the Twin Towers being released in October 2005 (see October 26, 2005). A previous analysis of the WTC collapses conducted by FEMA and the American Society of Civil Engineers (ASCE) was completed earlier in 2002 (see May 1, 2002), but this had a budget of just $1.1 million. By the time NIST starts its investigation, much of the crucial steel debris from the WTC collapses has already been destroyed (see September 12-October 2001). They later refer to there being a “scarcity of physical evidence that is typically available in place for reconstruction of a disaster.” [National Institute of Standards and Technology, 9/2005, pp. xxxvi]

Entity Tags: World Trade Center, National Institute of Standards and Technology, Glenn Corbett

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Matthys Levy.Matthys Levy. [Source: PBS]A report is made publicly available, which the Engineering News-Record calls the “most comprehensive study yet on the destruction of the World Trade Center.” The study was commissioned by WTC leaseholder Silverstein Properties Inc. to support a $7 billion insurance claim, and conducted by a team of engineers from several leading firms, including Weidlinger Associates, LZA Technology/Thornton-Tomasetti, and ARUPFire. It is intended to build on a previous study sponsored by FEMA (see May 1, 2002). The report’s findings are based on an analysis of original structural drawings, thousands of photos, and dozens of videos. Investigators used fire evaluation techniques and powerful computer software to simulate the condition of each tower at critical times between the planes’ impacts and the towers’ collapses. The earlier FEMA investigators had no access to such computer modeling. Matthys Levy, the chairman of Weidlinger Associates and one of the engineers on the study team, says, “The buildings had tremendous reserve capacity and that was reflected in all of the elements we analyzed. In fact, because there were so much excess capacity, the columns even in the impact floors did not buckle immediately, but failed as the result of the fire.” The report states that failure of the WTC’s steel floor supports (“trusses”) did not contribute to the collapses. Instead, the collapses were caused by the failure of steel structural columns that were either destroyed when the planes hit or lost fireproofing, leaving them vulnerable to the weakening effects of the ensuing fires. It says that debris and dust distributed by the plane crashes inhibited the fires, such that the average air temperatures on the impact floors were between 400 and 700°C (750-1,300°F): significantly lower than those associated with typical “fully developed” office fires. However, says Matthys Levy, “By the time the temperature inside the buildings reached 400 degrees, the steel would have lost approximately 50% of its strength. Eventually, gravity took over and the towers began to fall.” Then, according to the analysis led by researchers from LZA Technology/Thornton-Tomasetti, “Once collapse initiated in each tower, essentially all of the interior structure of the tower fell straight down with floors pancaking on top of one another. The network of perimeter steel columns and spandrels acted like a chute to funnel the interior contents into the tower footprint.” According to the computer simulations, the damage to the South Tower’s steel core columns was so severe that the tower should have collapsed immediately after the plane hit. Civil engineer John Osteraas says this incorrect result casts doubt upon some of the study’s predictions. The report concludes that the collapse of the South Tower did not cause or contribute to the subsequent collapse of the North Tower, thus supporting Silverstein Properties’ claim that the terrorist attack represented two occurrences, entitling it to two $3.5 billion insurance policy limits. A separate study commissioned by the insurers contradicts this (see October 23, 2002). The Silverstein report apparently does not examine the collapse of WTC Building 7, a 47-story skyscraper that also collapsed on 9/11 (see (5:20 p.m.) September 11, 2001). It has been passed on to the National Institute of Standards and Technology (NIST), which is undertaking its own investigation of the WTC collapses (see August 21, 2002). [New York Times, 9/30/2002; Business Insurance, 10/23/2002; Silverstein Properties, Inc., 10/23/2002 pdf file; Engineering News-Record, 10/25/2002; New York Times, 10/29/2002; Engineering News-Record, 11/4/2002; Real Estate Weekly, 4/30/2003]

Entity Tags: World Trade Center, Silverstein Properties, Thornton-Tomasetti Engineers, Weidlinger Associates, Matthys Levy

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The National Institute of Standards and Technology (NIST) issues a progress report on its investigation into the World Trade Center collapses. Since 2002, NIST has been investigating the collapses of the Twin Towers and WTC Building 7 (see August 21, 2002). The progress report includes its “working hypothesis” for the collapse of WTC 7. This was a 47-story building, located about 350 feet from the north side of WTC 1, which collapsed completely at around 5:20 in the afternoon of 9/11. The report claims that “fire appears to have played a key role” in the collapse, though it points out, “No fire was observed or reported in the afternoon on floors 1-5, 10, or above Floor 13.” It also says, “there may have been some physical damage on the south side of the building.” NIST summarizes its working hypothesis of the WTC 7 collapse as follows:
bullet “An initial local failure at the lower floors (below Floor 13) of the building due to fire and/or debris induced structural damage of a critical column (the initiating event), which supported a large span floor bay with an area of about 2,000 square feet.”
bullet “Vertical progression of the initial local failure up to the east penthouse, as large floor bays were unable to redistribute the loads, bringing down the interior structure below the east penthouse.”
bullet “Horizontal progression of the failure across the lower floors… triggered by damage due to the vertical failure, resulting in the disproportionate collapse of the entire structure.”
NIST claims this hypothesis “is consistent with all evidence currently held by NIST, including photographs and videos, eyewitness accounts and emergency communication records,” but says it “will be revised and updated as results of ongoing, more comprehensive analyses become available.” [National Institute of Standards and Technology, 6/2004, pp. L1, L3, L17, L34, L38, L51-L52; National Institute of Standards and Technology, 6/18/2004] NIST will release its final reports on the collapses of the Twin Towers in October 2005 (see October 26, 2005). As of mid-2007, it has yet to release a final report on the collapse of WTC 7. In early 2006, Dr. S. Shyam Sunder, who is the lead investigator for NIST’s WTC investigation, will admit, “truthfully, I don’t really know” what caused WTC 7 to collapse. He will add, “We’ve had trouble getting a handle on building no. 7” (see March 20, 2006). [New York Magazine, 3/20/2006] An earlier report on the WTC collapses, released by the Federal Emergency Management Agency (FEMA) in May 2002, had been inconclusive on what caused WTC 7 to collapse, and stated that “Further research, investigation, and analyses” were necessary (see May 1, 2002). [Federal Emergency Management Agency, 5/1/2002, pp. 5-31]

Entity Tags: World Trade Center, National Institute of Standards and Technology

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The 43 NIST reports ran to over 10,000 pages.The 43 NIST reports ran to over 10,000 pages. [Source: NIST]The National Institute of Standards and Technology (NIST) issues the final report of its three-year, $16 million study into the WTC collapses on 9/11. NIST has produced over 10,000 pages of findings, and its report includes 30 recommendations for improving building safety, such as having wider stairwells and structurally hardened elevators for use in emergencies. The recommendations are mostly the same as those outlined in an earlier draft of the report (see June 23, 2005). [Engineering News-Record, 10/27/2005; New York Times, 10/27/2005] NIST has made some amendments and clarifications, though, based upon nearly 500 comments received during a six-week public review period. [National Institute of Standards and Technology, 10/26/2005] NIST’s theory about what caused the Twin Towers to collapse remains the same as that described in its previously released findings (see October 19, 2004). However, the NIST’s account only examines events up to the initiation of each collapse; the investigation “does not actually include the structural behavior of the tower after the conditions for collapse initiation were reached and collapse became inevitable.” [National Institute of Standards and Technology, 9/2005, pp. 82] NIST makes no mention of molten metal found at the collapse site in the weeks and months after 9/11, which has been described in numerous reports (see September 12, 2001-February 2002). The “NIST found no corroborating evidence for alternative hypotheses suggesting that the WTC towers were brought down by controlled demolition using explosives planted prior to September 11, 2001.” [National Institute of Standards and Technology, 9/2005, pp. 146] Members of Congress are critical of NIST’s recommendations, saying they are not detailed enough, or adequately documented, to be rapidly incorporated into standard building code publications. [New York Times, 10/27/2005] According to Glenn Corbett, a technical adviser to NIST and fire science professor at John Jay College, NIST is not aggressive enough to carry out major forensic investigations. He says, “Instead of a gumshoe inquiry that left no stone unturned, I believe the investigations were treated more like research projects in which they waited for information to flow to them.” [Associated Press, 10/26/2005; US Congress, 10/26/2005 pdf file] NIST will release its final report on the collapse of Building 7 of the WTC separately, at a later date. [National Institute of Standards and Technology, 9/2005, pp. xiii]

Entity Tags: World Trade Center, Glenn Corbett, National Institute of Standards and Technology

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

A poll released by Zogby International shows widespread skepticism towards the official 9/11 story. The nationwide telephone survey of 1,200 adults finds that 42 percent of respondents agreed that “the US government and its 9/11 Commission concealed or refused to investigate critical evidence that contradicts their official explanation of the September 11th attacks,” and that “there has been a cover-up.” Ten percent of respondents said they were unsure, while less than half said the government and 9/11 Commission were not covering up. Forty-five percent of respondents felt the 9/11 attacks should be reinvestigated. Forty-four percent believed that President Bush exploited the attacks to justify the 2003 invasion of Iraq. The survey also found that 43 percent of respondents were unaware of the collapse of WTC 7 on 9/11. [Zogby International, 5/24/2006; New York Times, 6/5/2006; Newsday, 9/1/2006] When Lee Hamilton, the former co-chair of the 9/11 Commission, is later questioned about this poll, he will say the figure of 42 percent of Americans believing there has been a cover up is “dispiriting, it’s an unusually high number” (see August 21, 2006). [Canadian Broadcasting Corporation, 8/21/2006] A previous Zogby poll found 49 percent of New York City residents agreed that some leaders “knew in advance” of the 9/11 attacks and “consciously failed to act” (see August 30, 2004).

Entity Tags: Zogby International

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

A poll by Ohio University and Scripps Howard News Service finds that a significant minority of Americans believe there was US government complicity in the 9/11 attacks. Thirty-six percent of the 1,010 respondents say they believe that US government officials “either assisted in the 9/11 attacks or took no action to stop the attacks because they wanted the United States to go to war in the Middle East.” Sixteen percent believe that secretly planted explosives brought down the Twin Towers, and 12 percent believe a military cruise missile, rather than a hijacked aircraft, hit the Pentagon. [Scripps Howard News Service, 8/3/2006; San Francisco Chronicle, 9/3/2006] An earlier poll had found that half of New York City residents believed government officials knew in advance of the attacks and consciously failed to act (see August 30, 2004).

Entity Tags: Ohio University, Scripps Howard News Service

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Thomas Kean and Lee Hamilton, the former chairman and vice chairman of the 9/11 Commission, release a book giving a behind-the-scenes look at their 20-month investigation of the September 11 attacks. [Associated Press, 8/4/2006] They begin their book, titled Without Precedent, saying that, because their investigation started late, had a very short time frame, and had inadequate funding, they both felt, from the beginning, that they “were set up to fail.” [Canadian Broadcasting Corporation, 8/21/2006; Rocky Mountain News, 8/25/2006] They explain the difficulties they faced in obtaining certain government documents and describe how the commission almost splintered over whether to investigate the Bush administration’s use of 9/11 as a reason for going to war. It says that if original member Max Cleland—a strong proponent of this line of inquiry—had not resigned (see December 9, 2003), the commission probably would not have reached unanimity. It also calls their gentle questioning of former New York Mayor Rudolph Giuliani during his May 2004 testimony, “a low point” in the commission’s handling of witnesses at its public hearings (see May 19, 2004). [Associated Press, 8/4/2006; New York Daily News, 8/5/2006; New York Times, 8/6/2006] Despite the problems it faced, when discussing his book with the CBC, Hamilton says he thinks the commission has “been reasonably successful in telling the story” of 9/11. [Canadian Broadcasting Corporation, 8/21/2006] Without Precedent, however, contains little new information about the events of 9/11. Intelligence expert James Bamford says there is “an overabundance of self-censorship by the authors.” [New York Times, 8/20/2006]

Entity Tags: Thomas Kean, Lee Hamilton

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Former 9/11 Commission co-chair Lee Hamilton.Former 9/11 Commission co-chair Lee Hamilton. [Source: CBC]Lee Hamilton, the former co-chair of the 9/11 Commission, gives a wide-ranging interview to the CBC about Without Precedent, a book he recently co-authored about his time on the 9/11 Commission (see August 15, 2006). In the interview he discusses the various “conspiracy theories” surrounding the events of 9/11. The interviewer, Evan Solomon, mentions to him a recent Zogby poll (see May 17, 2006) that found that 42% of Americans agreed that “the US government, and its 9/11 Commission, concealed or refused to investigate critical evidence that contradicts the official explanation of September 11th.” Hamilton calls this lack of trust in the Commission’s report “dispiriting,” but attacks the “conspiracy theory people,” saying, “when they make an assertion they do it often on very flimsy evidence.” He addresses some of the various “conspiracy theories” that have been put forward about 9/11:
bullet In order to contradict the allegation that the Twin Towers were brought down deliberately with pre-planted explosives, Hamilton says the WTC collapsed (see 8:57 a.m. September 11, 2001) because “the super-heated jet fuel melted the steel super-structure of these buildings and caused their collapse.” He adds, “There’s a powerful lot of evidence to sustain that point of view, including the pictures of the airplanes flying into the building.”
bullet With regard to the collapse of WTC Building 7 (see (5:20 p.m.) September 11, 2001), which some people claim was also caused by explosives, he argues, “[W]e believe that it was the aftershocks of these two huge buildings in the very near vicinity collapsing. And in the Building 7 case, we think that it was a case of flames setting off a fuel container, which started the fire in Building 7, and that was our theory on Building 7.” However, the interviewer points out that the 9/11 Commission’s final report does not actually mention the collapse of Building 7, and Hamilton says he does not recall whether the Commission made a specific decision to leave it out.
bullet In reply to a question about why the debris of Building 7 were moved quickly from the scene without a thorough investigation, even though nobody died in Building 7 and there was no need for rescue operations there, Hamilton responds, “You can’t answer every question when you conduct an investigation.”
bullet When asked whether Saeed Sheikh sent Mohamed Atta $100,000 for the 9/11 plot (see Early August 2001 and Summer 2001 and before), Hamilton replies, “I don’t know anything about it.” When the interviewer presses him about whether the Commission investigated a possible Pakistani Secret Service (ISI) connection to the attacks, Hamilton replies, “They may have; I do not recall us writing anything about it in the report. We may have but I don’t recall it.”
bullet Asked about Secretary of Transportation Norman Mineta’s claim that Vice President Dick Cheney was in the presidential bunker beneath the White House at 9:20 a.m. on 9/11 (see (Between 9:20 a.m. and 9:27 a.m.) September 11, 2001), almost 40 minutes earlier than the Commission claimed he had arrived there, Hamilton replies, “I do not recall.” When pressed, he expands, “Well, we think that Vice President Cheney entered the bunker shortly before 10 o’clock. And there is a gap of several minutes there, where we do not really know what the Vice President really did. There is the famous phone call between the President and the Vice President. We could find no documentary evidence of that phone call.”
bullet When the interviewer points out that Richard Clarke’s account conflicts with the Commission’s over what time authorization was received from Dick Cheney to shoot down Flight 93 (see (Between 9:45 a.m. and 9:56 a.m.) September 11, 2001 and (Between 10:00 a.m. and 10:15 a.m.) September 11, 2001), Hamilton retorts, “Look, you’ve obviously gone through the report with a fine-toothed comb, you’re raising a lot of questions—I can do the same thing.”
The interviewer also asks Hamilton whether he has any unanswered questions of his own about 9/11. Hamilton’s response is: “I could never figure out why these 19 fellas did what they did. We looked into their backgrounds. In one or two cases, they were apparently happy, well-adjusted, not particularly religious - in one case quite well-to-do, had a girlfriend. We just couldn’t figure out why he did it. I still don’t know.” [Canadian Broadcasting Corporation, 8/21/2006]

Entity Tags: Saeed Sheikh, World Trade Center, Richard (“Dick”) Cheney, Pakistan Directorate for Inter-Services Intelligence, Lee Hamilton, 9/11 Commission, Richard A. Clarke, Mohamed Atta, Norman Mineta

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

One of the ‘puffs of smoke’ observed during the Twin Towers collapses.One of the ‘puffs of smoke’ observed during the Twin Towers collapses. [Source: Richard Lethin]The National Institute of Standards and Technology (NIST) issues a seven-page fact sheet to counter alternative theories about the WTC collapses. NIST conducted a three-year study of the collapses, and concluded they were caused by the damage when the planes hit combined with the effects of the ensuing fires. However, many people—what the New York Times calls an “angry minority”—believe there was US government complicity in 9/11, and a recent poll (see July 6-24, 2006) found 16 percent of Americans believe the WTC towers were brought down with explosives. [National Institute of Standards and Technology, 8/31/2006; New York Times, 9/2/2006; Reuters, 9/2/2006] The fact sheet responds to 14 “Frequently Asked Questions.” Some of its key points include the following:
bullet Regarding whether NIST considered a controlled demolition hypothesis: “NIST found no corroborating evidence for alternative hypotheses suggesting that the WTC towers were brought down… using explosives… Instead, photographs and videos from several angles clearly show that the collapse initiated at the fire and impact floors and that the collapse progressed from the initiating floors downward until the dust clouds obscured the view.” However, it admits, “NIST did not test for the residue” of explosives in the remaining steel from the towers.
bullet Its explanation for puffs of smoke seen coming from each tower as it collapsed: “[T]he falling mass of the building compressed the air ahead of it—much like the action of a piston—forcing smoke and debris out the windows as the stories below failed sequentially.”
bullet Its explanation for a stream of yellow molten metal that poured down the side of the South Tower shortly before it collapsed (see (9:50 a.m.) September 11, 2001). NIST previously claimed it was aluminum, but this should not have been yellow in color: “Pure liquid aluminum would be expected to appear silvery. However, the molten metal was very likely mixed with large amounts of hot, partially burned, solid organic materials (e.g., furniture, carpets, partitions and computers) which can display an orange glow.”
bullet Regarding reports of molten steel in the wreckage at Ground Zero (see September 12, 2001-February 2002): “Any molten steel in the wreckage was more likely due to the high temperature resulting from long exposure to combustion within the pile than to short exposure to fires or explosions while the buildings were standing.”
bullet Regarding the collapse of WTC 7 (see (5:20 p.m.) September 11, 2001): “While NIST has found no evidence of a blast or controlled demolition event, NIST would like to determine the magnitude of hypothetical blast scenarios that could have led to the structural failure of one or more critical elements.” [National Institute of Standards and Technology, 8/30/2006] In response to the fact sheet, Kevin Ryan, the coeditor of the online Journal of 9/11 Studies, says, “The list of answers NIST has provided is generating more questions, and more skepticism, than ever before.” He says, “NIST is a group of government scientists whose leaders are Bush appointees, and therefore their report is not likely to veer from the political story.” [New York Times, 9/2/2006; Reuters, 9/2/2006]

Entity Tags: National Institute of Standards and Technology, Kevin Ryan

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The National Institute of Standards and Technology (NIST) publishes a fact sheet responding to 14 “frequently asked questions” about its investigation into the collapse of the Twin Towers on September 11. Some of the key questions and answers are as follows:
bullet Regarding the question, “Why was the collapse of WTC 1 and 2 not arrested by the intact structure below the floors where columns first began to buckle?” NIST replies, “The vertical capacity of the connections supporting an intact floor below the level of collapse was adequate to carry the load of 11 additional floors if the load was applied gradually and 6 additional floors if the load was applied suddenly (as was the case).” As the number of floors above the points where the collapses initiated exceeded six (12 in the case of the North Tower, 29 for the South), NIST says, “[T]he floors below the level of collapse initiation were unable to resist the suddenly applied gravitational load from the upper floors of the buildings.”
bullet In answer to the question of “Why was physical evidence not collected immediately following the collapse of the WTC towers,” NIST says, “In the initial days and weeks following the WTC disaster, the emphasis was on rescue and later on recovery, necessitating the removal of steel and disturbing the collapse site.” It adds, “NIST did not receive the legal authority to collect and preserve physical evidence from a disaster/failure site until the National Construction Safety Team Act became law in October 2002.” The decision to rapidly scrap the remaining steel from the WTC was made shortly after 9/11 (see Shortly After September 11, 2001), but the destruction of this steel was strongly protested by some within the engineering and firefighting communities (see December 25, 2001 and January 4, 2002).
bullet In response to a question about why it did not use its subpoena authority during its investigation, NIST states that its “experience during the investigation was that it was able to obtain all essential documentary and visual evidence without the need to invoke subpoena authority.”
bullet In answer to the question, “Why didn’t NIST fully model the collapse initiation and propagation of WTC towers?” NIST says, “Once the collapse had begun, the propagation of the collapse was readily explained without the same complexity of modeling” as was used to determine the sequence of events leading up to the collapse initiation.
bullet During its investigation, NIST had selected several variables for its computer simulations, and then experimented with different possible values (see (October 2002-October 2005)). But it has been asked: “Why didn’t NIST consider the ‘base’ and ‘less severe’ cases throughout its analysis of the WTC towers? What was the technical basis for selecting only the ‘more severe’ case for its analyses?” Its answer is that, “Of the three [possible values], the more severe case resulted in the closest agreement with the visual and physical evidence.” [National Institute of Standards and Technology, 12/14/2007]
NIST published its final report on the Twin Towers collapse in October 2005 (see October 26, 2005). It released an earlier fact sheet answering previous “frequently asked questions” in August 2006 (see August 30, 2006). [National Institute of Standards and Technology, 8/30/2006]

Entity Tags: National Institute of Standards and Technology

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The National Institute of Standards and Technology (NIST) releases a draft version of the final report of its investigation of the collapse of World Trade Center Building 7, the 47-story skyscraper which collapsed late in the afternoon of 9/11 (see (5:20 p.m.) September 11, 2001). [National Institute of Standards and Technology, 8/21/2008] The report describes NIST’s conclusions on how fires that followed the impact of debris from the north WTC tower’s collapse resulted in the eventual collapse of WTC 7. It evaluates the emergency response and building evacuation procedures, and provides 13 recommendations for construction of buildings in the future, and improved procedures and practices. [National Institute of Standards and Technology, 8/2008, pp. xiii pdf file] Some of the report’s key findings are:
bullet NIST describes its theory of what caused WTC 7 to collapse: “The probable collapse sequence… was initiated by the buckling of a critical interior column.… This column had become unsupported over nine stories after initial local fire-induced damage led to a cascade of local floor failures. The buckling of this column led to a vertical progression of floor failures up to the roof and to the buckling of adjacent interior columns to the south of the critical column. An east-to-west horizontal progression of interior column buckling followed, due to loss of lateral support to adjacent columns, forces exerted by falling debris, and load redistribution from other buckled columns. The exterior columns then buckled as the failed building core moved downward, redistributing its loads to the exterior columns. Global collapse occurred as the entire building above the buckled region moved downward as a single unit.” [National Institute of Standards and Technology, 8/2008, pp. xxxii pdf file]
bullet The collapse of WTC 7 “represents the first known instance of the total collapse of a tall building primarily due to fires. The collapse could not have been prevented without controlling the fires before most of the combustible building contents were consumed.” [National Institute of Standards and Technology, 8/2008, pp. 43 pdf file]
bullet The fires in WTC 7 “were ignited as a result of the impact of debris from the collapse of WTC 1, which was approximately 370 ft to the south.… The fires were ignited on at least 10 floors; however, only the fires on floors 7 through 9 and 11 through 13 grew and lasted until the time of the building collapse.” [National Institute of Standards and Technology, 8/2008, pp. xxxi-xxxii pdf file]
bullet “Even without the initial structural damage caused by debris impact from the collapse of WTC 1, WTC 7 would have collapsed from fires having the same characteristics as those experienced on September 11, 2001.” [National Institute of Standards and Technology, 8/2008, pp. 44 pdf file]
bullet “Had a water supply for the automatic sprinkler system been available and had the sprinkler system operated as designed, it is likely that fires in WTC 7 would have been controlled and the collapse prevented.” [National Institute of Standards and Technology, 8/2008, pp. 43 pdf file]
bullet Other skyscrapers had previously survived comparable fires. “The fires in WTC 7 were similar to those that have occurred previously in several tall buildings (One New York Plaza, 1970, First Interstate Bank, 1988, and One Meridian Plaza, 1991) where the automatic sprinklers did not function or were not present. However, because of differences between their structural designs and that of WTC 7, these three buildings did not collapse.” [National Institute of Standards and Technology, 8/2008, pp. 43 pdf file]
bullet NIST found that “temperatures did not exceed 300°C in the core or perimeter columns in WTC 7,” including the three interior columns that NIST says were the first to buckle in the collapse. “None of these columns were significantly weakened by elevated temperatures.” [National Institute of Standards and Technology, 8/2008, pp. 49-50 pdf file]
bullet NIST says it found “no evidence to suggest that WTC 7 was not designed in a manner generally consistent with applicable building codes and standards.” [National Institute of Standards and Technology, 8/2008, pp. 53 pdf file]
bullet The report concludes that neither explosives nor fuel oil fires fed by diesel tanks in WTC 7 played any role in the collapse (see August 21, 2008 and August 21, 2008). [National Institute of Standards and Technology, 8/2008, pp. 44-45 pdf file]
bullet However, the report points out that WTC 7 “and the records kept within it were destroyed, and the remains of all the WTC buildings were disposed of before congressional action and funding was available for this investigation to begin. As a result, there are some facts that could not be discerned, and thus there are uncertainties in this accounting. Nonetheless, NIST was able to gather sufficient evidence and documentation to conduct a full investigation upon which to reach firm findings and recommendations.” [National Institute of Standards and Technology, 8/2008, pp. xxxi pdf file]
NIST released a progress report in June 2004, which had included its “working hypothesis” at that time for the collapse of WTC 7 (see June 18, 2004). [National Institute of Standards and Technology, 6/18/2004] After suggestions are made by members of the public in response to the current draft report, NIST will release the finished version of the report in November 2008, which includes the same major findings and recommendations as the draft version (see November 20, 2008). [National Institute of Standards and Technology, 11/20/2008]

Entity Tags: World Trade Center, National Institute of Standards and Technology

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

NIST’s ‘Final Report on the Collapse of World Trade Center Building 7.’NIST’s ‘Final Report on the Collapse of World Trade Center Building 7.’ [Source: National Institute of Standards and Technology.]The National Institute of Standards and Technology (NIST) releases the final report of its three-year investigation of the collapse of World Trade Center Building 7, the 47-story skyscraper which collapsed late in the afternoon of 9/11 (see (5:20 p.m.) September 11, 2001). This is the completed version of the report, and comes three months after a draft version was released for public comment (see August 21, 2008). NIST states that the new report “is strengthened by clarifications and supplemental text suggested by organizations and individuals worldwide in response to the draft WTC 7 report.” NIST conducted an additional computer analysis in response to comments from the building community, and made several minor amendments to the report. But, it says, “the revisions did not alter the investigation team’s major findings and recommendations, which include identification of fire as the primary cause for the building’s failure.” With the release of this report, NIST has completed its six-year investigation of the World Trade Center collapses, which it commenced in August 2002 (see August 21, 2002). The final report of its investigation of the Twin Towers’ collapses was published in October 2005 (see October 26, 2005). [National Institute of Standards and Technology, 11/20/2008; Occupational Health and Safety, 11/25/2008]

Entity Tags: World Trade Center, National Institute of Standards and Technology

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

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