NTSB

Probable cause: The pilot’s failure to maintain clearance from the lake during a low-level maneuver.

Probable cause: The pilot’s failure to extend the landing gear with sufficient time to allow the landing gear to fully extend and the flight instructor’s failure to visually check to see if the right main landing gear were extended.

Probable cause: The pilot’s failure to see and avoid transmission wires.

Probable cause: The pilot’s failure to attain a proper glidepath on approach for landing, which resulted in an impact with a guard rail and post. Contributing to the accident was the pilot’s failure to ensure that sufficient fuel was onboard for nonlevel flight, which resulted in fuel starvation.

Probable cause: The failure of the engine’s front bearing seal due to maintenance personnel’s installation of an improperly sized crankshaft seal, which resulted in oil starvation and a forced landing.

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.