Primary finding
Probable cause
Fuel starvation due to the improper positioning of the fuel tank selector by the student pilot.
Investigator assessment
Analysis narrative
The instructor and pilot rated student were practicing pattern work. The instructor asked the student to switch the fuel selector from the right tank to the left tank. The student moved the selector but did not look at it. He inadvertently selected the OFF position. The engine quit, and could not be restarted. The instructor landed the airplane about 50 yards short of the runway. The main landing gear wheels dug into the snow during landing roll, and the airplane nosed-over.
Source record
Factual narrative
On February 21, 1994, a Piper PA-18-150, N66ND, operated by the University of North Dakota, Grand Forks, North Dakota, sustained substantial damage when airplane had a loss of engine power and the pilot landed short of the runway at the Grand Forks International Airport. Neither the instructor pilot nor the pilot-rated student were injured. The instructional flight originated at the Grand Forks Airport at 0845. No flight plan was filed, and visual meteorological conditions prevailed at the time. The instructor and student were doing pattern work. The instructor asked the student to switch fuel tanks from right to left. The student reported he "...didn't look and check the fuel selector position." He inadvertently switched the fuel selector to OFF. The instructor landed the airplane about 50 yards short of the runway. The wheels dug into the snow during landing roll, and the airplane nosed-over. -