NTSB

Probable cause: The total loss of engine power for reasons that could not be determined based on the available evidence.

Probable cause: A fuel leak from the carburetor float bowl due to a missing plug, which resulted in excessive fuel consumption and a total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot’s decision to depart on the accident flight leg after noting the airplane’s unexpectedly high fuel consumption during the previous leg.

Probable cause: The pilot’s improper hand propping procedure, which resulted in a runaway airplane and subsequent impact with a hangar.

Probable cause: The pilot’s improper fuel management, which resulted in a total loss of right engine power due to fuel starvation; the pilot’s inadequate flight planning; the pilot’s failure to secure the right engine following the loss of power; and his failure to properly configure the airplane for the go-around, which resulted in the airplane’s failure to climb, an exceedance of the critical angle of attack, and an aerodynamic stall.

Probable cause: The partial loss of engine power due to a fractured exhaust valve, which resulted in a forced landing on unsuitable terrain and a subsequent rollover.

Probable cause: The pilot’s improper preflight fuel planning and in-flight fuel management, which resulted in fuel exhaustion and the total loss of engine power.

Probable cause: The pilot’s improper decision not to abort the takeoff after the airplane encountered standing water on the runway, which decreased its speed and led to its subsequent inability to climb and resulted in a runway overrun.

Probable cause: The airplane’s collision with a bird during straight-and-level flight.

Probable cause: The pilot’s failure to see and avoid power wires while maneuvering at low altitude. Contributing to the accident was the pilot’s inability to determine the airplane’s altitude due to sun glare.