NTSB

Probable Cause: A failure of the No. 2 connecting rod, which resulted in a total loss of engine power.

Probable Cause: The pilot’s improper fuel management, which resulted in fuel starvation and a total loss of engine power.

Probable Cause: The flight instructor’s exceedance of the airplane’s critical angle of attack during the initial climb, which resulted in an aerodynamic stall and subsequent rapid descent into terrain.

Probable Cause: The pilot’s inadequate fuel management which resulted in a total loss of engine power due to fuel exhaustion.

Probable Cause: The student pilot’s failure to maintain airplane control after takeoff that resulted in an impact with terrain.

Probable Cause: The pilot’s failure to maintain proper airspeed on approach, which resulted in an extended touchdown, loss of control, and runway excursion.

Probable Cause: A loss of directional control during the landing roll due to the left wheel seizing from insufficient grease in the left wheel bearing.

Probable Cause: The blockage of the left fuel tank vent, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident of the pilot’s failure to use his checklist to address the loss of engine power.