NTSB

Probable cause: The pilot’s in-flight fuel mismanagement, which resulted in fuel starvation and a total loss of engine power.

Probable cause: The pilot’s failure to abort the takeoff after recognizing a partial loss of engine power during the takeoff roll and his subsequent inability to maintain adequate airspeed during a turn to avoid power lines, which resulted in an aerodynamic stall. The reasons for the loss of engine power could not be determined because post-accident examination of the engine revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.

Probable cause: Fuel starvation due to the deterioration of a fuel hose.

Probable cause: The partial loss of engine power due to water contamination in the fuel system.

Probable cause: A partial loss of engine power during initial climb for reasons that could not be determined because extensive fire damage precluded thorough examination of the engine and its associated systems.

Probable cause: The noncertificated pilot’s failure to maintain clearance from residential buildings and trees in gusting wind conditions.

Probable cause: A total loss of engine power due to the engine’s unresolved high operating temperatures, which resulted in failure of the distributor rotor and drive shaft, and the pilot’s failure to maintain airspeed during the subsequent forced landing, which resulted in an aerodynamic stall and loss of control.

Probable cause: An in-flight collision with a bird during the approach.

Probable cause: The pilot’s improper starting procedure before hand propping the engine, and his subsequent attempt to stop the moving airplane, which resulted in him being struck by the propeller.