NTSB

Probable cause: The total loss of engine power due to carburetor icing.

Probable cause: The failure of the engine-driven fuel pump and the pilot’s failure to identify the pump’s failure, which resulted in a loss of engine power due to fuel starvation and a forced landing on a road, during which the airplane hit obstacles.

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

Probable cause: The pilot’s failure to use taxiways shown on the airport diagrams and his subsequent failure to avoid a ditch.

Probable cause: The failure of the universal joint in the pilot-side flight control yoke due to the fatigue fracture of a rivet within the universal joint. Contributing to the universal joint failure was the universal joint design, which was prone to galling wear and seizure.

Probable cause: The pilot’s failure to see and avoid power lines while maneuvering at a low altitude.

Probable cause: The pilot’s improper glidepath during a night approach, which resulted in impact with terrain short of the runway.

Probable cause: The loss of engine power due to a propeller failure when the passenger’s hat exited the cockpit and impacted the three-bladed pusher propeller, separating one of the propeller blades.

Probable cause: The pilot’s failure to apply carburetor heat in conditions conducive to carburetor icing, which resulted in a partial loss of engine power during landing.