Primary finding
Probable cause
The pilot’s improper in-flight fuel planning which resulted in a total loss of engine power due to fuel starvation and a subsequent off-field landing on rough terrain.
Investigator assessment
Analysis narrative
Prior to the flight, the pilot checked the fuel level and noted the airplane contained about 38 gallons of fuel. During the cross-country flight, the pilot switched fuel tanks about every 15 minutes. While on approach about 3 miles from the destination airport with the fuel selector in the left tank position, the engine began to intermittently lose power. With the electric fuel pump on, the pilot pumped the throttle, and the engine temporarily regained full power. The pilot attempted to gain some altitude when the engine lost total power. Unable to make the airport, the pilot conducted an off-field landing, during which the left wing sustained substantial damage. Postaccident examination of the airplane revealed that the left fuel tank was empty, and the right fuel tank contained 8 gallons of fuel.