Incident Overview
On an unspecified date, an aircraft was conducting a takeoff from runway 01R at San Francisco Airport. During the takeoff roll, after the aircraft had reached V1 speed, the crew noticed vibrations and a reduction in acceleration. The captain decided to reject the takeoff, but the aircraft was unable to stop within the remaining runway length.
Sequence of Events
The aircraft overran the runway end, losing its nose gear and engine number 2 before coming to rest in the San Francisco Bay. The fuselage was broken in two. All three crew members were evacuated safely from the aircraft.
Aircraft Damage
The aircraft sustained damage beyond repair as a result of the overrun and subsequent impact with the bay.
Probable Cause
According to the official investigation, the probable cause of the incident was the initiation of rejected takeoff procedures beyond V1 speed, with insufficient runway remaining in which to stop the aircraft. The crew's action was prompted by the failure of the two right truck rear tires, which produced a noticeable aircraft vibration and a reduction in aircraft acceleration.
