Incident Overview
A pilot reported an accident during a takeoff attempt from a 3,000-foot grass strip with approximately 4-inch tall grass. The pilot stated that he performed weight and balance calculations before the flight by asking passengers their weights and estimating the weights of their bags. He calculated that the airplane was within center of gravity and weight limits.
Preflight and Takeoff
A preflight inspection of the airplane revealed no discrepancies. Before takeoff, the pilot performed an engine run-up with no discrepancies noted. He lowered the flaps to 10 degrees and initiated a short/soft field takeoff, applying full power while rolling onto the runway. The engine responded, and the pilot estimated that the airplane became airborne approximately three-quarters of the way down the runway.
Stall and Impact
While airborne at 20 feet above ground level, the airplane "stalled came back down and began sliding." The airplane traveled through three fences before coming to rest. The pilot stated that he expected the airplane should have become airborne about halfway down the runway and that there was no mechanical failure or malfunction.
Post-Accident Engine Run
The airplane was recovered, and no repairs to the engine or its systems were performed. With FAA oversight, the engine was started and operated to 2,000 rpm. Safety concerns prevented operation to a higher rpm, but no discrepancies were noted during the engine run. The engine was operated with the fuel selector positioned to the right main fuel tank, which had been selected for takeoff.