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Context of '(9:01 a.m.) September 11, 2001: FAA’s New York Center Informs TRACON Controllers about Flight 175'

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

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

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The FAA’s New York Center informs the air traffic control coordinator at United Airlines’ headquarters, outside Chicago, that Flight 175 is missing from radar. Although Flight 175’s transponder signal changed at around 8:47 (see 8:46 a.m.-8:47 a.m. September 11, 2001), according to the 9/11 Commission the air traffic controller handling the flight only noticed the change at 8:51 (see 8:51 a.m.-8:53 a.m. September 11, 2001). [9/11 Commission, 8/26/2004, pp. 21-22]

Entity Tags: United Airlines, New York Air Route Traffic Control Center

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The FAA’s New York Center contacts the New York Terminal Radar Approach Control (TRACON) and asks for help in locating Flight 175. Different air traffic controllers scan different altitudes, and TRACON controllers only deal with low-flying planes. These controllers have remained uninformed about the fate of Flight 11 until about now. “We had 90 to 120 seconds; it wasn’t any 18 minutes,” one controller wil later recall, referring to the actual elapsed time between the two crashes. Another controller will say of Flights 11 and 175: “They dove into the airspace. By the time anybody saw anything, it was over.” [New York Times, 9/13/2001; 9/11 Commission, 6/17/2004]

Entity Tags: New York Terminal Radar Approach Control, New York Air Route Traffic Control Center

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The air traffic control tower at Dulles International Airport.The air traffic control tower at Dulles International Airport. [Source: Metropolitan Washington Airports Authority]The FAA’s Herndon Command Center informs a supervisor at the Terminal Radar Approach Control (TRACON) at Washington Dulles International Airport that the FAA has lost contact with American Airlines Flight 77 and is trying to locate it. The Dulles TRACON then informs its air traffic controllers that a commercial aircraft is missing, and instructs them to look for primary targets on their radar screens. [9/11 Commission, 7/24/2004, pp. 25; 9/11 Commission, 8/26/2004, pp. 32] (A primary target is a radar track that provides an aircraft’s position and speed, but not its altitude, and which can still be viewed when the plane’s transponder has been turned off. [Washington Post, 9/11/2001; Salon, 9/10/2004] ) Dulles Airport is located 26 miles west of Washington, DC, and 22 miles from the Pentagon. [New York Times, 6/19/1994; USA Today, 9/13/2001] According to the 9/11 Commission, controllers at its TRACON will locate an unidentified aircraft on their radar screens at 9:32 (see 9:32 a.m. September 11, 2001), although other accounts will suggest they locate the target slightly earlier (see (Between 9:25 a.m. and 9:30 a.m.) September 11, 2001). [Federal Aviation Administration, 9/17/2001 pdf file; 9/11 Commission, 8/26/2004, pp. 33]

Entity Tags: Washington Dulles International Airport, Federal Aviation Administration

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

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