Events (3)

• (10:07 a.m.-10:15 a.m.) September 11, 2001: United Airlines Headquarters Learns of Smoke Plume Rising at Flight 93’s Last Known Location 2001-09-11
• (9:36 a.m.-10:06 a.m.) September 11, 2001: United Airlines Crisis Center Watches Flight 93 on Radar until It Crashes 2001-09-11
• September 14, 2001-2002: Contrary Accounts of Flight 93’s Speed Raise Questions 2001-09-14