Pilot Report
According to the pilot of a Piper J3C-50, during the preflight inspection and subsequent engine start, the engine was observed to be running roughly. In an effort to rectify the rough operation, the pilot conducted high-speed taxi maneuvers. Believing the engine had cleared up, the pilot decided to fly the airplane in the traffic pattern as a safety check. During the takeoff roll, at an altitude of approximately 50 feet above the runway, the engine ceased producing power. The pilot initiated a turn in an attempt to return to the private landing strip, but the airplane stalled and struck the terrain.
Examination Findings
A Federal Aviation Administration (FAA) inspector examined the airplane following the accident. The inspection revealed that the fuel lines contained dirt and debris. Further review of the airplane's maintenance records indicated that the most recent annual inspection had been completed roughly five years prior to the accident. Additionally, the airplane was being operated with automobile gasoline, and no supplemental type certificate had been issued by the FAA authorizing the use of automobile gasoline in that specific aircraft.