Dennis Doonan Profile: Dennis Doonan Events (2) (Shortly After 10:20 a.m.) September 11, 2001: First Non-Alert Fighters Take off from Otis Air Base Unarmed 2001-09-11 (11:04 a.m.) September 11, 2001: Unarmed Fighters Intercept US Military Aircraft Returning from Europe 2001-09-11