9:05 a.m.: White House chief of staff Andrew Card informs Bush that the South Tower was hit and this was not an accident. „A second plane hit the second tower. America is under attack,“ Card told MSNBC were the words he said to the president.

9:12 a.m.: Renee A. May, a flight attendant aboard Flight 77, calls her mother and says the plane has been hijacked. Her mother then calls American Airlines. Minutes after their call, passenger Barbara Olson calls her husband, Solicitor General Theodore Olson, and tells him hijackers took over the flight. He informs federal officials.

9:37 a.m.: Flight 77 crashes into the Pentagon.