The FAA’s Command Center in Herndon, Virginia, issues a formal Notice to Airmen (NOTAM), closing all operations at all US airports. [US Congress. House. Committee On Transportation And Infrastructure, 9/21/2001; Federal Aviation Administration, 3/21/2002; Harrald et al., 7/15/2002 
]
10:40 a.m. September 11, 2001: Attorney General Ashcroft Ignores FAA Order for His Plane to Land
The plane carrying Attorney General John Ashcroft is ordered to land by the FAA’s Cleveland Center, but Ashcroft is intent on reaching Washington, DC, and instructs his pilot to ignore the order. [Federal Aviation Administration, 3/21/2002; Ashcroft, 2006, pp. 117; Spencer, 2008, pp. 258] Ashcroft learned of the attacks in New York while flying to Milwaukee in a small government jet, and immediately wanted to return to Washington, but his plane needed to land first in Milwaukee to refuel (see Shortly After 9:03 a.m. September 11, 2001). Even though the FAA had issued a nationwide ground stop to prevent aircraft from taking off, Ashcroft then insisted that his plane leave Milwaukee to fly back to Washington (see After 9:37 a.m. September 11, 2001).
FAA Manager Furious, Wants Plane to Land – When Ben Sliney, the national operations manager at the FAA’s Command Center in Herndon, Virginia, hears about Ashcroft’s plane defying the ground stop order, he is livid. He immediately calls the FAA’s Cleveland Center and tells it to order the plane to land. An air traffic controller at the Cleveland Center then issues this order to Ashcroft’s plane. [Newsweek, 3/10/2003; Spencer, 2008, pp. 257-258] David Clemmer, the plane’s pilot, tells Ashcroft, “They’re instructing me to land outside of Detroit,” but Ashcroft tells him, “No, keep going.” [Washington Post, 9/28/2001; Ashcroft, 2006, pp. 117]
Controller Reports that Plane Is Not Complying – According to a 2002 FAA report, Ashcroft then requests that his plane be allowed to immediately return to Washington, and he receives permission to do so. [Federal Aviation Administration, 3/21/2002] But author Lynn Spencer will give a different account, saying that Clemmer “chooses to ignore the controller and continues toward Washington.” The Cleveland Center controller then informs the FAA Command Center that the pilot of Ashcroft’s plane is not responding and not complying. [Spencer, 2008, pp. 258] Ashcroft’s plane will subsequently be redirected toward Richmond, Virginia, and is threatened with being shot down if it does not land (see 11:11 a.m. September 11, 2001). [Daily Record (Glasgow), 9/29/2001; Federal Aviation Administration, 3/21/2002; Ashcroft, 2006, pp. 118]
10:40 a.m.-11:00 a.m. September 11, 2001: Defense Secretary Rumsfeld Refuses to Leave Military Command Center, against Established Emergency Plan
Defense Secretary Donald Rumsfeld refuses to leave the Pentagon, despite the smoke leaking into the National Military Command Center (NMCC) where he is currently working, the danger of a second attack on the Pentagon, and a White House request to begin implementing Continuity of Government (COG) measures. [Goldberg et al., 2007, pp. 132] After being out of touch with his colleagues at the Pentagon since the time of the attack there (see (9:38 a.m.-10:00 a.m.) September 11, 2001 and 9:39 a.m. September 11, 2001), Rumsfeld finally entered the NMCC at around 10:30 a.m. (see (10:30 a.m.) September 11, 2001). [9/11 Commission, 7/24/2004, pp. 43-44; Cockburn, 2007, pp. 2-6] It is now noticed that smoke is seeping into the center. With people beginning to cough, aides suggest Rumsfeld should leave the building, but he is uninterested in their advice. Even when they warn that the smoke might be toxic, he still ignores them. Rumsfeld’s deputy, Paul Wolfowitz, tells him he should leave the Pentagon. But Rumsfeld instead orders Wolfowitz to leave the NMCC and fly to Site R, the alternate command center outside Washington (see (11:00 a.m.) September 11, 2001). According to journalist and author Steve Vogel, this is “contrary to the established Continuity of Government plan, which called for the secretary of defense to relocate to the alternate command center.… The secretary figured the 45 minutes to an hour it would take to evacuate to Site R would leave him out of touch for too long.” Rumsfeld will later explain: “That’s life. That’s what deputies are for.” [Vogel, 2007, pp. 441]
10:40 a.m. September 11, 2001: First Fighter Seen Arriving over the Pentagon
According to a number of witnesses on the ground, a US Air Force F-16 flies low over the Pentagon at this time; apparently becoming the first fighter to arrive over the scene of the third attack. [American Forces Press Service, 10/11/2001; Creed and Newman, 2008, pp. 130-131] Firefighters and other emergency responders at the Pentagon recently evacuated away from the crash site, due to reports of another supposedly hijacked aircraft flying toward Washington (see (10:15 a.m.-10:38 a.m.) September 11, 2001). [US Department of Health and Human Services, 7/2002, pp. A30 ] 
Steve Carter, the assistant building manager, is in the Pentagon’s center courtyard, expecting this plane to hit the building. He then sees an F-16 zoom “low and fast over the courtyard.” [Creed and Newman, 2008, pp. 130] On Washington Boulevard, where many fire and rescue personnel relocated during the evacuation, cheers go up when the F-16 flies over. Firefighter Mike Smith shouts out: “Thank God that guy’s there! Where has he been?” [Creed and Newman, 2008, pp. 130-131] Lieutenant Commander Dale Rielage will recall that an “arriving combat air patrol F-16 thundered overhead” after the alleged second hijacked plane was said to be approaching the Pentagon. [Fire Engineering, 11/1/2002] John Jester, the chief of the Defense Protective Service, which guards the Pentagon, says that, following the evacuation, “It wasn’t until an F-15 fighter jet crossed in the sky that we realized the danger had passed.” [Murphy, 2002, pp. 246-247] USA Today reporter Mike Walter, who has been at the Pentagon since the attack there, recalls that, after the evacuation, an “F-16 came screaming by the Pentagon, and people cheered.” [People, 9/24/2001] Staff Sergeant Edwin Rotger Jr. will also describe seeing fighters arriving over the Pentagon at this time. However, he says there are two of them, not one. [Marble and Milhiser, 9/2004, pp. 49] According to the New York Times, “witnesses, including a reporter for the New York Times who was headed toward the building, did not see any [fighter jets over the Pentagon] until closer to 11 [o’clock].” [New York Times, 9/16/2001]
According to some accounts, the fighter that flies over the Pentagon at this time is Major Billy Hutchison’s F-16 from Andrews Air Force Base (see (10:38 a.m.) September 11, 2001). [Spencer, 2008, pp. 235] Hutchison will recall, “I circled at a couple of hundred feet at the most just to, one, investigate, and two, give the people on the ground some semblance of security of an American fighter coming by” (see 10:39 a.m.-10:45 a.m. September 11, 2001). [Filson, 2003, pp. 81-82] However, some accounts contradict this. Major Dean Eckmann, from Langley Air Force Base, suggests his F-16 is the first to fly over the Pentagon, and this was at some time shortly after 9:45 a.m. (see (9:45 a.m.) September 11, 2001). He will say: “I heard stories that people went back in [the Pentagon] after seeing me fly over to help others out.… Now they knew they were safe.” [Filson, 2003, pp. 66] Other accounts similarly suggest that the first fighter jet (or jets) arrived over the Pentagon significantly earlier than is described by the witnesses on the ground, between 9:49 and 10:00 a.m. (see (Between 9:49 a.m. and 11:00 a.m.) September 11, 2001). [CNN, 9/17/2001; 9/11 Commission, 8/26/2004, pp. 34]
10:41 a.m. September 11, 2001: Cheney Calls Bush, Warns Him against Returning to Washington
Vice President Dick Cheney calls President Bush, who is on Air Force One, and urges him not to return to Washington, DC. [New York Times, 9/16/2001; Sammon, 2002, pp. 108-109; Washington Post, 1/27/2002] Cheney, who is in the Presidential Emergency Operations Center (PEOC) below the White House, wants Bush to instead go to Offutt Air Force Base in Nebraska, according to the New York Times. This is because Cheney “knew from his days as secretary of defense” that Offutt has “an extraordinarily sophisticated Strategic Command communications center.” [New York Times, 9/16/2001] According to journalist and author Bill Sammon, Cheney tells Bush that he and National Security Adviser Condoleezza Rice both think Washington is “no longer safe enough for his return.” [Sammon, 2002, pp. 108-109] Cheney says, “There’s still a threat to Washington.” Washington Post reporter Bob Woodward will describe: “Signals intelligence and all kinds of reports were flooding in. Given what had happened—four hijackings—it wasn’t prudent to come back.” Cheney says he is worried that “the terrorists might be trying to decapitate the government, to kill its leaders,” and Bush agrees with him. Cheney says they have “a responsibility to preserve the government, its continuity of leadership.” [Woodward, 2002, pp. 18; Washington Post, 1/27/2002] White House press secretary Ari Fleischer, who is with the president on Air Force One, will recall that around this time—presumably just after the call from Cheney—Bush tells others on the plane “that the vice president didn’t think it was safe for us to return to Washington until we could get a handle on how many hijacked planes there were. All planes flying in the continental United States had been ordered to land, but it wasn’t clear that all had done so.” [Fleischer, 2005, pp. 142] According to some reports, Air Force One is traveling north toward Washington at the time of Cheney’s call, and shortly afterwards it changes course and heads west toward Barksdale Air Force Base in Louisiana (see (10:45 a.m.) September 11, 2001). [Sammon, 2002, pp. 108-109; Washington Post, 1/27/2002] However, other accounts, including the 9/11 Commission Report, will state that Air Force One turned west at around 10:10 a.m. (see (10:10 a.m.) September 11, 2001) and began heading toward Barksdale about 10 minutes later (see (10:20 a.m.) September 11, 2001). [USA Today, 9/11/2001; 9/11 Commission, 7/24/2004, pp. 325]
10:42 a.m. September 11, 2001: Fighters Launched from Syracuse Air Base
Two F-16 fighters take off from Hancock Field Air National Guard Base, near Syracuse, NY. The fighters belong to the 174th Fighter Wing, a unit of the New York Air National Guard. A commander from Syracuse had called NORAD’s Northeast Air Defense Sector (NEADS) offering to help earlier in the morning (see (After 9:03 a.m.) September 11, 2001). Although at that time they’d promised: “Give me 30 minutes and I’ll have heat-seeker [missiles]. Give me an hour and I can give you slammers,” the fighters now launching have bullets but no missiles. [Post-Standard (Syracuse), 9/12/2001; Aviation Week and Space Technology, 6/3/2002; Post-Standard (Syracuse), 10/18/2002] The Hancock pilots are ordered to “Identify all aircraft… Intercept them. Tell them to land. ‘Engage’ them if they [don’t].” [Post-Standard (Syracuse), 9/25/2001] Also at some time this morning, following the attacks, 174th FW officials form a command center to monitor the situation across the US. [Post-Standard (Syracuse), 9/11/2001; Post-Standard (Syracuse), 9/12/2001] A hundred of the 174th FW’s staff have spent the last month deployed to Saudi Arabia and are due back this afternoon. However, they are diverted to Canada and arrive back at the base later in the week (see Mid-August-September 11, 2001).
10:42 a.m. September 11, 2001: Two DC Air National Guard Fighters Take Off, but without Missiles
Two F-16 fighter jets belonging to the District of Columbia Air National Guard (DCANG) take off from Andrews Air Force Base, near Washington, but they have no missiles and only training bullets for their guns. The pilots are Lieutenant Colonel Marc Sasseville and Lieutenant Heather Penney Garcia. [Filson, 2003, pp. 82; 9/11 Commission, 2004; Vogel, 2007, pp. 446]
Possibly Given Shootdown Authorization – Before they headed to their jets, Sasseville and Penney Garcia were given a short briefing by Brigadier General David Wherley, the commander of the DC Air National Guard. Wherley will later recall telling Sasseville that he has “weapons free flight-lead control,” meaning he is responsible for deciding whether to fire on hostile aircraft (see (Between 9:40 a.m. and 10:35 a.m.) September 11, 2001). [Filson, 2003, pp. 82; 9/11 Commission, 7/24/2004, pp. 44; Vogel, 2007, pp. 446] But Sasseville will say he does not recall receiving any such rules of engagement until after he has taken off. [9/11 Commission, 3/8/2004 ]
Jets Only Have Training Ammunition – The two pilots run out to their jets and climb into the cockpits. But their F-16s are armed only with “hot” guns and 511 rounds of non-explosive training practice (TP) ammunition. According to Sasseville: “They had two airplanes ready to go, and were putting missiles on numbers three and four. Maintenance wanted us to take the ones with missiles, but we didn’t have time to wait on those.”
Rookie Pilot ‘Never Scrambled Before’ – Penney Garcia, who is a rookie pilot, will later say: “I’d never scrambled before, I’d never done this. I was screaming to the maintainers to pull the chocks, and the guys were pulling the pins to arm the guns. We were going without INS [inertial navigation system].” Sasseville and Penney Garcia are airborne about six minutes after reaching their jets. They are unaware that fighters launched from Langley Air Force Base are also flying over Washington, at around 20,000 feet (see (Between 9:49 a.m. and 11:00 a.m.) September 11, 2001). [Aviation Week and Space Technology, 9/9/2002; Filson, 2003, pp. 82]
Told to Look for Hijacked Plane – Over their radios, Sasseville and Penney Garcia receive instructions from their squadron to look for a hijacked aircraft approaching from the northwest and heading toward Georgetown (see (10:30 a.m.-10:40 a.m.) September 11, 2001). But, Sasseville will later recall, “We didn’t know what we were looking for—how high he was coming, or low, or where he was going.” [Vogel, 2007, pp. 446] He will say, “I don’t have the whole picture, but have word from Washington National Approach that something is coming.”
Pilot ‘Making Things Up on the Fly’ – The two jets will fly over Washington at low altitudes, around 5,000 or 6,000 feet. Sasseville will later say, “I didn’t want to get too low for a good radar angle, and not too high, so we could get somewhere fast.” He will admit that he is “making things up on the fly,” as he has no precedent to draw upon. [Aviation Week and Space Technology, 9/9/2002; Filson, 2003, pp. 82] Another DCANG pilot, Billy Hutchison, launched from Andrews four minutes before Sasseville and Penney Garcia take off, but he is airborne for less than 10 minutes (see (10:38 a.m.) September 11, 2001 and 10:47 a.m. September 11, 2001). The next DCANG jets to take off, which will be armed with missiles, launch at 11:11 a.m. (see 11:11 a.m. September 11, 2001). [9/11 Commission, 2004; 9/11 Commission, 2/17/2004; Vogel, 2007, pp. 446]
10:42 a.m. September 11, 2001: Status of Three Planes Unknown; False Rumors Persist of More Terrorist Activity
Around this time (roughly), the FAA tells the White House that it still cannot account for three planes in addition to the four that have crashed. It takes the FAA another hour and a half to account for these three aircraft. [Time, 9/14/2001] Vice President Cheney later says, “That’s what we started working off of, that list of six, and we could account for two of them in New York. The third one we didn’t know what had happened to. It turned out it had hit the Pentagon, but the first reports on the Pentagon attack suggested a helicopter and then later a private jet.”
[Los Angeles Times, 9/17/2001] Amongst false rumors during the day are reports of a bomb aboard a United Airlines jet that just landed in Rockford, Illinois. “Another plane disappears from radar and might have crashed in Kentucky. The reports are so serious that [FAA head Jane] Garvey notifies the White House that there has been another crash. Only later does she learn the reports are erroneous.”
[USA Today, 8/13/2002]
10:43 a.m.-10:52 a.m. September 11, 2001: Defense Readiness Condition Is Raised to the Highest Level in 28 Years
The US military’s defense readiness condition is raised from Defcon 5, the lowest possible level, to Defcon 3, an intermediate level that requires a heightened alert status for US armed forces worldwide, and which is the highest the defense readiness condition has been for 28 years. [Historical Office, Office of the Secretary of Defense, 7/18/2002 ; 9/11 Commission, 7/24/2004, pp. 326, 554; Goldberg et al., 2007, pp. 131; Rumsfeld, 2011, pp. 338]
Rumsfeld Recommends Raising the Defcon – The decision to go to Defcon 3 is reportedly made by Secretary of Defense Donald Rumsfeld. [US Department of Defense, 8/12/2002] Rumsfeld will later recall that after he arrives at the Pentagon’s National Military Command Center (NMCC) (see (10:30 a.m.) September 11, 2001), he talks with General Richard Myers, the vice chairman of the Joint Chiefs of Staff, and “[w]e discussed and I recommended raising the defense condition level from five to three.” [9/11 Commission, 3/23/2004]
Teleconference Participants Are Told to ‘Hold Off’ on Defcon 3 – Rumsfeld directs that the US military go to Defcon 3. At 10:43 a.m., it is announced on the air threat conference call that the secretary of defense “has directed that we go to Defcon 3 and be prepared to go to [Defcon] 2.” However, a minute later, Rumsfeld talks to Vice President Dick Cheney on the conference call, and Cheney says he will have to run the decision to go to Defcon 3 by the president, “and let him make the call.” Therefore, at 10:45 a.m., those on the conference call are told to “hold off on Defcon 3.”
Order to Raise the Defcon Is Reinstated – But Rumsfeld believes raising the defense readiness condition is urgent. [US Department of Defense, 9/11/2001 ; 9/11 Commission, 7/24/2004, pp. 326, 554] There is therefore a “historical discussion about how the move to Defcon 3 went during previous crises, Cuba specifically [i.e. the Cuban missile crisis in 1962],” Captain Charles Leidig, who is also in the NMCC, will later recall. With their reference being “a book on the shelf,” according to Leidig, Myers is shown that he has “approval authority to go to Defcon 3.” [9/11 Commission, 4/29/2004 ] After consulting Defense Department directives, Rumsfeld concludes that he has the authority to issue the order to raise the defense readiness condition. [9/11 Commission, 7/24/2004, pp. 554] Therefore, at 10:46 a.m., those on the air threat conference call are told: “Override last instructions. The vice chairman [i.e. Myers] is directing we go to Defcon 3.” A few minutes later, an announcement is made on the conference call, “Emergency action message released at 14:52 [Zulu time, i.e. 10:52 a.m. Eastern time], re: Defcon 3.” [US Department of Defense, 9/11/2001 ; 9/11 Commission, 2004]
Raising the Defcon Is a ‘Huge Move’ – Rumsfeld will later agree with an interviewer that raising the defense readiness condition is “a very serious step for the nation.” [US Department of Defense, 8/12/2002] It was last raised to Defcon 3 during the 1973 Arab-Israeli war, when Rumsfeld had been the United States ambassador to NATO. Regarding the decision to raise it, Myers tells Rumsfeld, “It’s a huge move, but it’s appropriate.” [US Department of Defense, 1/9/2002; Wall Street Journal, 3/22/2004 ; Rumsfeld, 2011, pp. 338]
President Is Later Told of the Decision – The decision to go to Defcon 3 will soon be communicated within NORAD (see 11:03 a.m.-11:12 a.m. September11, 2001). [9/11 Commission, 6/17/2003; 9/11 Commission, 2004; 9/11 Commission, 2/3/2004 ] Rumsfeld will brief President Bush on the decision (see (11:15 a.m.) September 11, 2001). [9/11 Commission, 7/24/2004, pp. 554; Bush, 2010, pp. 133] Apparently around the time the defense readiness condition is raised, Rumsfeld and/or Myers also decide to raise the force protection condition of US military installations (see (Between 10:10 a.m. and 10:35 a.m.) September 11, 2001). [US Department of Defense, 9/11/2001 ; 9/11 Commission, 3/23/2004 ; Myers and McConnell, 2009, pp. 153]
Defcon 3 Was Intended for the Cold War – Some individuals will later be critical of the decision to raise the defense readiness condition at this time. John Farmer, the senior counsel to the 9/11 Commission, will write that Defcon 3 is in fact “a Cold War-era designation, devised to respond to a nuclear threat.” [Farmer, 2009, pp. 235] According to Farmer and other 9/11 Commission staffers, it is “suited more to a Cold War conflict than to al-Qaeda’s attack.” [Rutgers Law Review, 9/7/2011 ] General Ralph Eberhart, the commander of NORAD, will similarly say that Defcon 3 is “not intended for [events like] the attacks of 9/11 and thus could have complicated the response to the attacks.” He will say he does not think that raising the condition would have “done anything for us” within the continental United States. [9/11 Commission, 3/1/2004 ]
Defcons Are Phased Increases in Combat Readiness – The defense readiness condition is a “uniform system of progressive alert postures for use between the chairman of the Joint Chiefs of Staff and the commanders of unified and specified commands, and for use by the [armed] services,” according to the Department of Defense. [US Department of Defense, 11/8/2010 ] Defcons are phased increases in combat readiness and are graduated to match situations of varying military severity. They are numbered, from Defcon 5, which means “normal peacetime readiness,” down to Defcon 1, which means “maximum force readiness.” The current level, Defcon 3, represents an “increase in force readiness above normal readiness.” [Federation of American Scientists, 4/29/1998] The defense readiness condition will remain at Defcon 3 until three days later, when it will be reduced one notch, to Defcon 4 (see September 14, 2001). [Washington Post, 1/30/2002]
10:44 a.m. September 11, 2001: Global Guardian Exercise Formally Canceled
The US Strategic Command (Stratcom) formally terminates its Global Guardian exercise at this time, according to a 2006 article in The Bombardier, the newspaper for Barksdale Air Force Base, Louisiana. Global Guardian was put on pause just over 90 minutes earlier, according to the same article (see 9:11 a.m. September 11, 2001). [Bombardier, 9/8/2006 ] However, other reports will suggest that Global Guardian was canceled significantly earlier than 10:44 a.m. One article in the Omaha World-Herald will state, “When the second World Trade Center tower was hit,” at 9:03 a.m., “the exercise was canceled, and the battle staff [at Offutt Air Force Base, Nebraska] moved to the real-world crisis.” [Omaha World-Herald, 9/8/2002] But an earlier article in the World-Herald will say that military authorities canceled Global Guardian “after the attacks on the World Trade Center towers and the Pentagon,” suggesting some time after 9:37 a.m., when the Pentagon was hit. [Omaha World-Herald, 2/27/2002] An E-4B National Airborne Operations Center aircraft that was involved in Global Guardian was reportedly only told to pull out of the exercise just after the Pentagon was hit (see (9:27 a.m.) September 11, 2001). [Verton, 2003, pp. 143-144] Even after Global Guardian is canceled, this plane and two other E-4Bs that are involved in the exercise will remain airborne. [Omaha World-Herald, 2/27/2002] The annual Global Guardian exercise tests Stratcom’s ability to fight a nuclear war (see 8:30 a.m. September 11, 2001). [Omaha World-Herald, 2/27/2002; GlobalSecurity (.org), 4/27/2005]
