On September 11, 2001, Homer was flying with Captain Jason M. Dahl on United Airlines Flight 93 from Newark, New Jersey, to San Francisco. The plane was hijacked by four al-Qaeda terrorists as part of the September 11 attacks. While struggling for control of the plane, Dahl and Homer managed to transmit to the ground twice, screaming “Mayday! Mayday! Mayday! Get out of here!”. After learning of the earlier crashes at the World Trade Center and the Pentagon, some of the crew and passengers tried to foil the hijacking and reclaim the aircraft. During this struggle, it crashed into a field near Shanksville, Pennsylvania.