The crew was completing a night training mission out from Andersen AFB, Guam. While returning the airbase, control was lost and the airplane crashed into the sea about seven miles southeast of the airfield. Four crew members were killed while two others were rescued. The aircraft sank and was lost. Crew: Cpt Stephen R. Roseman, pilot, † Jack Watson, copilot, Robert W. Nemeth, † Cpt Leroy E. Pitman, † John Y. Whitley, † Brad Lee Buske.
Probable cause (official findings): It is believed that the loss of control was the consequence of a malfunction of the gyros after the electrical system failed.