On May 22, 1990, a Cessna 305A (registration N66BC) was involved in an aviation accident near Perry, FL. Investigators recorded the probable cause as: LOSS OF ENGINE POWER FOR AN UNDETERMINED REASON. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An aircraft experienced an engine power loss at 750 ft MSL with flaps and manifold pressure set. Attempts to restart failed, leading to a forced landing where both wings struck trees. An FAA inspector later found fuel sufficient and engine operational, but the cause of power loss remains undetermined.
Incident Details
The pilot reported that the engine lost power approximately 15 minutes into the flight. At the time, the aircraft was at 750 feet MSL with one notch of flaps lowered and manifold pressure set at 18-19 inches. The pilot attempted to restart the engine but was unsuccessful. During the subsequent forced landing, both wings collided with trees.
Post-Inspection
An FAA maintenance inspector examined the aircraft and verified that fuel quantity was sufficient to maintain engine operation. The inspector also stated that the engine started and operated normally during a post-incident test.
Conclusion
No determination could be made as to the reason for the loss of engine power.