Accident Sequence
The pilot reported that during takeoff, after becoming airborne, the airplane quit accelerating and a positive climb rate was not established. He applied full power, but felt no response from the aircraft. Witnesses observed the airplane become airborne, but it failed to gain altitude. It subsequently struck an antenna array and a fence off the departure end of the runway. The airplane continued across a slough, struck an embankment, and came to rest approximately 900 feet from the departure end of the runway on a golf course adjacent to the airport.
Examination Findings
Examination of the airframe revealed no pre-mishap anomalies. The engine was examined and showed moderate circular rubbing damage to the compressor and power turbine blades, indicating engine operation at impact, likely in the low to mid power range. No anomalies were found that would have prevented the engine from producing power prior to impact. The reason for the partial loss of engine power was not determined.
Probable Cause
The official probable cause is a partial loss of engine power for an undetermined reason during the initial takeoff climb, resulting in an in-flight collision with objects.