Accident Details
A cargo flight operating between Salmon and Indian Creek ended in a fatal crash when the pilot deviated from the planned route to fly over large game for the passenger, an avid hunter. While cruising at low altitude and reduced speed, the single-engine airplane entered an aerodynamic stall, lost control, and impacted terrain before bursting into flames. Both occupants sustained fatal injuries.
Investigation
The investigation revealed that the crash site was not on the intended flight path, indicating an unauthorized detour. At the time of the accident, the aircraft was flying at a low altitude and low speed, conditions conducive to a stall. Additionally, the area was characterized by high density altitude, approximately 9,000 feet, which reduces engine performance and lift.
Probable Cause
The official probable cause of the accident was a stall resulting from the pilot's failure to maintain adequate flying speed. Contributing factors included unwarranted low flying, high density altitude (about 9,000 feet), and the crash site being off the planned route.