NTSB

Probable Cause: Water contamination in the fuel system that was not observed during the preflight inspection, resulting in a total loss of engine power and forced landing.

Probable Cause: The pilot’s mismanagement of the airplane’s fuel system, which resulted in fuel starvation and a loss of engine power.

Probable Cause: The flight instructor’s decision to taxi behind a large multi-engine airplane, which resulted in an encounter with propeller blast and a loss of airplane control on the ground.

Probable Cause: The pilot’s exceedance of the airplane’s critical angle of attack and failure to maintain proper airspeed during a turn to final, resulting in an aerodynamic stall and subsequent impact with terrain. Contributing to the accident was the pilot’s distraction due to a non-critical radio anomaly.

Probable Cause: The failure of the engine-driven fuel pump, which resulted in a total loss of engine power. Contributing to the failure of the fuel pump was an unknown non-ferrous metallic debris that was noted throughout the airplane’s fuel system.

Probable Cause: The pilot’s flooding the engine with fuel during a cold engine start, which resulted in an engine fire.

Probable Cause: The pilot’s decision to land on the snow-covered runway and his failure to attain/maintain aircraft control during landing rollout.