An air traffic controller in the Terminal Radar Approach Control (TRACON) at Washington’s Reagan National Airport calls the airport’s control tower and alerts it to an unidentified aircraft that is approaching and heading in the direction of the White House. [Spencer, 2008, pp. 145-146, 158] The TRACON was recently contacted by controllers at Washington Dulles International Airport and notified of this aircraft, which is later determined to be Flight 77 (see (9:33 a.m.) September 11, 2001). [Washington Post, 9/11/2001; 9/11 Commission, 8/26/2004, pp. 33] TRACON controllers have watched it on radar as it traveled almost 10 miles south of the airport, and then turned back toward Washington.
TRACON Calls Tower – A controller in the TRACON now phones Chris Stephenson, the supervisor in the Reagan Airport control tower, and says to him, “See in the sky, five miles west of you?” Stephenson thinks he has identified the target the controller is referring to on his radar screen, but it is the wrong one. The controller clarifies: “No! The ‘LOOK’ tag! See the ‘LOOK’ tag? It’s a 757! Do you see anything out there?” Stephenson then looks out of the window and can see the plane, now less than a mile away, coming in fast. [Spencer, 2008, pp. 158] He sees it turning to the right and descending. [USA Today, 8/11/2002] A tour group from FAA headquarters is currently looking around the tower, and Stephenson promptly orders its members to “get out” of there (see (9:32 a.m.-9:37 a.m.) September 11, 2001).
Time of First Notification Unclear – According to author Lynn Spencer, Stephenson was unaware of the approaching aircraft prior to this call from the TRACON. [Spencer, 2008, pp. 157-158] But USA Today will claim he received a call at “[a]bout 9:30” from the Secret Service, telling him an unidentified aircraft was speeding toward Washington (9:30 a.m.) September 11, 2001). [USA Today, 8/11/2002] Furthermore, after the Reagan TRACON was alerted to the aircraft, departure controller Dan Creedon quickly attached a data box to its radar track with the word “LOOK” in it, which would allow other controllers—including those in the control tower—to quickly spot it and track it on their screens. Why Stephenson had not noticed this is unclear. [9/11 Commission, 7/28/2003 ; Spencer, 2008, pp. 145-146]