The Air Traffic Services Cell (ATSC)—a small office at the FAA’s Command Center in Herndon, Virginia, manned by military reservists—is activated.
Officers Learn of Attacks – Three officers are currently on duty in the ATSC: Colonel John Czabaranek, Lieutenant Colonel Michael-Anne Cherry, and Major Kevin Bridges. Colonel Brian Meenan, the director of the cell, is not in the ATSC at this time, and so Czabaranek, his deputy, is currently in charge. Czabaranek, Cherry, and Bridges learned of the first attack in New York at around 8:55 a.m. when another employee at the Command Center told them to turn on CNN, because an aircraft had crashed into the World Trade Center. The three officers initially thought the crash was an accident, but realized it was not when they saw the second aircraft hitting the WTC at 9:03 a.m. They then established contact with the Air Force Ops Center.
Cell Activated, Though Timing Unclear – The ATSC is activated, although the exact time this happens at is unclear. According to Aviation Week and Space Technology magazine, the cell “quickly became a key communications node during the military’s response to [the] terrorist attacks.” [US Air Force, 9/11/2001; Aviation Week and Space Technology, 6/10/2002] Jeff Griffith, the FAA’s deputy director of air traffic control, will tell the 9/11 Commission that “the military officers assigned to the Air Traffic Services Cell became immediately involved in coordinating FAA… Command Center actions with military elements.” [9/11 Commission, 6/9/2004 
] According to a chronology of the ATSC’s actions on this day, calls to activate the cell are apparently made at unspecified times following the second attack in New York and before the FAA’s ground stop (at 9:26 a.m.). These calls are made by a Lieutenant Colonel Mahoney and a Colonel Litzenberger from the Air Force Ops Center. Apparently shortly after the calls are made, Czabaranek contacts NORAD to let it know that the ATSC is “up and running.” [US Air Force, 9/11/2001]
Military Cell Aided by Recently-Installed Hardware – The ATSC’s response to the terrorist attacks benefits from the fact that, six weeks earlier, the cell had a secure terminal to access the SIPRNET—the military’s classified version of the Internet—installed, along with other hardware, which significantly enhances the movement of vital information. According to Meenan, because the cell has the SIPRNET terminal, “we could immediately look at NORAD and [Defense Department] plans as they evolved; filter, package, and format them, then walk out to the [FAA] national operations manager—who had control of the entire national airspace system—and give him current visibility into… fighter, tanker, and support aircraft activities. It cut down our response time tremendously.” [Aviation Week and Space Technology, 6/10/2002]
ATSC Is a Bridge between FAA and Military – The ATSC is a “part-time military outfit, staffed by part-time Air Force Reserve members” who “provide a bridge between the civilian and military worlds when air traffic issues arise,” according to the Air Force Times. For example, “During a crisis, the armed forces suddenly may need to inject a large number of military airplanes into a sky that typically handles only a few hundred.” [Air Force Times, 2000] However, Czabaranek will tell the 9/11 Commission that the ATSC is “not part of [the] FAA/NORAD hijack notification process.” [9/11 Commission, 4/14/2004]
Presence of ATSC Officers a ‘Fluke’ – According to Aviation Week and Space Technology, the presence of the three ATSC officers at the FAA Command Center this morning is a “fluke,” since the Pentagon staffs the military cell “only three days per month for refresher training, but September 11 happened to be one of those days.” [Aviation Week and Space Technology, 12/17/2001]
Cell Handles Aircraft after Airspace Shut Down – Later in the day, after the national airspace has been shut down (see (9:45 a.m.) September 11, 2001), the ATSC personnel will coordinate actions relating to military and other special flights that are permitted to fly. [9/11 Commission, 2003] They will be responsible for validating the requests they receive for the movement of aircraft, and issuing permissions in response to those requests. [Federal Aviation Administration, 3/21/2002]
9:41 a.m.-9:48 a.m. September 11, 2001: FAA Command Center Notifies FAA Headquarters about Flight 93 Problems
The FAA’s Command Center in Herndon, Virginia, provides updates to FAA headquarters in Washington, DC, about the problems with Flight 93. At 9:41 a.m., John White, a manager at the Command Center, is talking to Doug Davis, the special assistant for technical operations in air traffic services at FAA headquarters. White says that Flight 93 has reversed course from its intended flight path (see (9:36 a.m.) September 11, 2001), its transponder signal has been lost (see (9:40 a.m.) September 11, 2001), and it is now descending and heading east. From 9:42 a.m., one of the Command Center managers (exactly who is unstated) gives the headquarters several updates on Flight 93’s progress and location. At 9:46 a.m., White tells Jeff Griffith, the FAA’s deputy director of air traffic, that Flight 93 is “29 minutes out of Washington, DC, and tracking toward us.” Two minutes later, in another conversation with Griffith, White confirms that Flight 93 has reversed course and is heading toward Washington. [Federal Aviation Administration, 10/21/2002; 9/11 Commission, 8/26/2004, pp. 43-44]
11:18 a.m.-12:27 p.m. September 11, 2001: Three Planes over Atlantic Reportedly Signaling Emergencies, but Then Found to Be Fine
The US Coast Guard reports having received distress signals from three aircraft that are over the Atlantic Ocean, but these signals are soon determined to be false alarms, and one of the supposedly distressed aircraft is reported as not even flying on this day. [Federal Aviation Administration, 9/11/2001; Federal Aviation Administration, 3/21/2002, pp. S-26, S-29]
Three Planes Issued Distress Signals – At 11:18 a.m., it is reported on an FAA teleconference that the Coast Guard in Norfolk, Virginia, has received distress signals from United Airlines Flight 947, Continental Airlines Flight 57, and Air Canada Flight 65. [Federal Aviation Administration, 3/21/2002, pp. S-26]
Command Center Told to Notify Military – Fifteen minutes later, at 11:33 a.m., Jeff Griffith, the deputy director of air traffic at the FAA’s Washington, DC, headquarters, passes on the news about the three planes in a phone call with John White, a manager at the FAA’s Command Center in Herndon, Virginia. Griffith confirms that the distress signals received by the Coast Guard were from planes “in the Atlantic,” and instructs White, “Would you please make sure that NORAD is aware [of the three aircraft], and also the Services Cell,” meaning the Air Traffic Services Cell, a small office at the Command Center that is manned by military reservists (see (Between 9:04 a.m. and 9:25 a.m.) September 11, 2001). White replies, “I’ll do it.” [Federal Aviation Administration, 9/11/2001]
Flight Heading to Canada – Around the same time, according to a 2002 FAA report, it is reported on the FAA teleconference that United 947 is now heading toward Gander, in Canada, and is being managed by the Gander Area Control Center, which is the Canadian facility responsible for transatlantic flights. [Federal Aviation Administration, 3/21/2002, pp. S-28; MSNBC, 3/12/2010] However, a transcript of FAA communications on this day indicates that it is in fact the Continental Airlines flight that is heading toward Gander. According to that transcript, beginning around 11:40 a.m., White discusses the three suspicious flights over the phone with Doug Davis, the special assistant for technical operations in air traffic services at FAA headquarters. White says Continental 57 was originally destined for Newark, New Jersey, and air traffic controllers “have a track on the target” for this flight, which indicates that it is now heading to Gander. However, White says, controllers are “still looking” for the other two aircraft reported by the Coast Guard. [Federal Aviation Administration, 9/11/2001]
Planes Found to Be Safe – At 11:46 a.m., it is reported over the FAA teleconference that “[a]ll three aircraft that the US Coast Guard reported hearing distress calls [from] are accounted for,” and all of them are fine. [Federal Aviation Administration, 3/21/2002, pp. S-29] A couple of minutes later, White updates Davis on what is now known. White says one of the aircraft that was reportedly transmitting a distress signal, Air Canada Flight 65, was never even airborne. He says it “landed last night and was scheduled to depart today, but the flight’s canceled.” He adds that another of the flights, United 947, has “returned to Amsterdam,” in the Netherlands. [Federal Aviation Administration, 9/11/2001] Finally, at 12:27 p.m., it is reported over the FAA teleconference that Continental 57 has “landed in Gander.” [Federal Aviation Administration, 3/21/2002, pp. S-33]
