Incident Overview
Two witnesses observed a pilot completing a preflight inspection of his airplane, though they could not confirm whether he sumped the fuel tanks. The airplane taxied to a 3,200-foot long, 60-foot wide asphalt runway. After hearing the engine run-up, the witnesses saw the airplane begin its takeoff roll. As it passed behind trees, it did not climb above the tree line. One witness heard a sputter, while the other noted the engine noise ceased without roughness. Both then heard the sound of impact. A third witness did not see the accident but reported hearing the engine race at full throttle, followed by impact sounds.
Wreckage Location and Condition
The airplane came to rest approximately 2,000 feet beyond the approach end of the runway, 1,200 feet prior to the departure end, and 176 feet to the right of the runway centerline. It was oriented nose down in a near-vertical attitude. Two freshly cut tree branches were located near the wreckage: one about 1 inch in diameter, the other about 3 inches in diameter. One propeller blade exhibited chord-wise scratching, and an approximately 4-inch section of the tip was missing from the other blade.
Post-Accident Examination
Examination of the wreckage revealed no pre-impact mechanical malfunctions with the airframe or engine. However, traces of water were found in the fuel servo and fuel manifold. The airplane was not kept in a hangar. Approximately 1/2 inch of rain had fallen 4 days prior to the accident.