The pilot's lack of situational awareness and failure to maintain adequate clearance from terrain during takeoff. Factors contributing to the accident was the check airmen’s inadequate supervision.

The flight instructor's failure to provide adequate supervision of the second pilot during the landing roll, which resulted in a loss of control and an intentional ground-loop by the instructor. A factor in the accident was the dual student's ( a certificated private pilot) loss of directional control during the landing roll.