Primary finding
Probable cause
The pilot’s failure to maintain clearance from mountainous terrain after an encounter with a downdraft, which resulted in a collision with terrain.
Investigator assessment
Analysis narrative
The student pilot reported that he was maneuvering the airplane from the south to the north on the leeward side of a ridgeline when the airplane encountered a downdraft and suddenly lost altitude. He turned the airplane to the west, then to the east in an attempt to regain altitude, but the airplane continued to descend and collided with terrain. The fuselage and both wings sustained substantial damage. The pilot reported that were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.