What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
While the aircraft was in cruise flight the pilot reported that the engine began to lose and then regained power repeatedly. The pilot attempted to adjust engine controls to stop the loss of power but was unsuccessful. The aircraft began to lose altitude and the pilot selected an open area to land in mountainous terrain. Upon landing in deep snow the aircraft flipped over forward and sustained substantial damage to both wings.
As the FAA filed it
WHILE THE AIRCRAFT WAS IN CRUISE FLIGHT THE PILOT REPORTED THAT THE ENGINE BEGAN TO LOSE AND THEN REGAINED POWER REPEATEDLY. THE PILOT ATTEMPTED TO ADJUST ENGINE CONTROLS TO STOP THE LOSS OF POWER BUT WAS UNSUCCESSFUL. THE AIRCRAFT BEGAN TO LOSE ALTITUDE AND THE PILOT SELECTED AN OPEN AREA TO LAND IN MOUNTAINOUS TERRAIN. UPON LANDING IN DEEP SNOW THE AIRCRAFT FLIPPED OVER FORWARD AND SUSTAINED SUBSTANTIAL DAMAGE TO BOTH WINGS.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.