The air traffic control tower at Washington’s Reagan National Airport is evacuated, after it is informed that a suspicious aircraft—presumably Flight 93—is heading its way.
Warning of Approaching Aircraft – In the control tower, supervisor Chris Stephenson receives a call from the FAA’s Herndon Command Center, telling him: “You have another [aircraft] headed your way. Confirmed bomb on board.” This information also makes it to the Terminal Radar Approach Control (TRACON) at the airport. Around this time, the Command Center changes the information it has for Flight 93’s flight plan, so that it shows a destination of Reagan Airport (see 9:55 a.m. September 11, 2001). This means air traffic controllers are now able to track the flight on their situation displays. But in response to the news that the approaching aircraft has a bomb on board, the facility manager at Reagan Airport becomes concerned about the safety of his employees and decides to evacuate the control tower.
Tower Controllers Evacuated – Dan Creedon, a controller in the TRACON, tries calling the tower repeatedly, to pass on the manager’s instruction to evacuate, but he is unable to get through. He therefore leaves his post and takes the elevator up the tower. Once he reaches the control tower cab, he announces that there are to be “minimum bodies” in the tower, with only a skeletal staff remaining. Four controllers therefore volunteer to leave. [Spencer, 2008, pp. 215-216] (Seven or eight controllers usually work in the tower during a given shift, so this would mean three or four controllers remain there. [9/11 Commission, 7/28/2003 ] )
Terminal Being Evacuated – When they make it down to the airport terminal, the controllers find that it too is being evacuated. Police are yelling at the crowd: “Everybody’s got to go! There are no more flights! Leave your stuff! Just go! It doesn’t matter where you go, just get away from the airport.”
Other Controllers Head to Mobile Unit – The controllers who had remained behind decide they too should leave the tower and relocate to an emergency mobile unit. Before doing so, they temporarily turn over the command and control of their airspace to Washington, DC, police helicopters. They are then escorted by members of the Secret Service down from the tower and through the terminal. [Spencer, 2008, pp. 216]