Incident Overview
During taxiing, the number four engine failed to start due to a starter issue. The captain decided to increase taxi speed, hoping to start the engine by windmilling the propeller. When the engine started, the pilot was unable to stop the aircraft in a timely manner. The airplane veered off the taxiway, lost its undercarriage, and came to rest against a small embankment.
Occupant Status
All three crew members were unhurt.
Damage
The aircraft was damaged beyond repair.
Probable Cause
The official findings attribute the incident to an error of judgement on the part of the pilot: he failed to throttle back and apply his brakes in sufficient time to stop the aircraft from rolling forward beyond the end of the runway.