The pilot's selection of an unsuitable landing area in deep snow, which resulted in the nose over of the airplane on touchdown. A factor associated with the accident was a snow-covered airstrip.

The inadequate visual lookout by the pilot, and his selection of a landing area with high vegetation in the landing path. Factors which contributed to the accident were fatigue and the high vegatation.

THE PILOT'S PREMATURE LIFTOFF DURING TAKEOFF.

PILOT FAILED TO MAINTAIN DIRECTIONAL DURING THE LANDING ROLL.