What happened
The incident occurred when an instructor pilot allowed the aircraft to descend into mountainous terrain with insufficient altitude to counter reported wind conditions. The weather at the time included winds reported at 35 mph, which created significant downdrafts that prevented the crew from climbing to a higher altitude.
As the situation deteriorated, the pilot was forced to execute an emergency landing on a road. Upon touchdown, the left wing struck an embankment adjacent to the roadway. The impact caused the aircraft to nosed over, resulting in substantial damage to the airframe.
The investigation
The investigation focused on the sequence of events leading to the loss of altitude and the subsequent forced landing. Investigators examined the terrain profile and the reported wind conditions to determine why the aircraft could not maintain safe clearance.
The mechanical examination confirmed that the nosed-over position was a direct result of the left wing striking the embankment during the road landing. No pre-impact mechanical failures were identified as contributing factors.
Findings
The primary finding was that the instructor pilot made the decision to approach mountainous terrain with inadequate altitude reserves. The reported 35 mph winds and associated downdrafts played a critical role in preventing any attempt to climb out of the hazardous situation. The inability to gain altitude forced the descent onto the road, where the ground contact led to the final position of the aircraft.