What happened
While operating a flight from Kotzebue toward Red Dog, the aircraft experienced a loss of engine power caused by ice accumulation within the carburetor. In response to the engine failure, the pilot lowered the altitude of the plane and attempted to perform an emergency landing on terrain away from the airport. During this maneuver, the aircraft struck the ground and was consumed by flames.
Despite the intensity of the fire, which resulted in the total destruction of the aircraft, the pilot managed to exit the wreckage. The incident resulted in one injury, with the pilot sustaining only minor wounds.
Findings
Investigations into the accident identified several contributing elements related to the mechanical failure and environmental conditions:
- The primary cause was a controlled collision with the ground resulting from the incorrect use of powerplant controls.
- Ice buildup in the carburetor led to the loss of engine power.
- There was a failure to properly utilize or maintain the anti-icing and de-icing equipment.
- Reduced visibility due to fog was present during the flight sequence.