Primary finding
Probable cause
The pilot's decision to make contact with an unsuitable landing surface, resulting in a nose over.
Investigator assessment
Analysis narrative
The pilot was performing a low pass of a snow-covered off-airport landing site, in a wheel-equipped airplane, to determine the condition of the snow pack. He was dragging the main landing gear on the landing surface, but the snow was deeper than expected, and the airplane nosed over sustaining substantial damage to the vertical stabilizer. The pilot reported no preaccident mechanical malfunctions or failures that would have prevented normal operation.
Source record
Factual narrative
The pilot was performing a low pass of a snow-covered off-airport landing site, in a wheel-equipped airplane, to determine the condition of the snow pack. He was dragging the main landing gear on the landing surface, but the snow was deeper than expected, and the airplane nosed over sustaining substantial damage to the vertical stabilizer. The pilot reported no preaccident mechanical malfunctions or failures that would have prevented normal operation.