On August 13, 1985, a Piper PA-28-140 (registration N9912W) was involved in an aviation accident near May, TX. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During cruise at 4200 ft, engine RPM dropped to 1500; pilot could not restore power. Forced landing in rugged wooded area after diverting to Brownwood, TX. Examination revealed a separated #3 exhaust valve stem.
Event Summary
During a level cruise flight at 4,200 feet above mean sea level, the pilot reported that the engine revolutions per minute (RPM) dropped to 1,500. Attempts to restore power were unsuccessful. The pilot diverted the flight toward Brownwood, Texas, but determined that insufficient altitude remained to reach the airport. A forced landing was executed in a rugged, heavily wooded area.
Engine Examination
A subsequent examination of the engine revealed that the number 3 exhaust valve stem had separated. The exhaust valve head subsequently caused extensive damage to the piston and cylinder head. The reason for the valve stem separation could not be determined.
What happened in the 13 Aug 1985 Piper PA-28-140 accident near May, TX?
During cruise at 4200 ft, engine RPM dropped to 1500; pilot could not restore power. Forced landing in rugged wooded area after diverting to Brownwood, TX. Examination revealed a separated #3 exhaust valve stem.
What aircraft was involved and where did it happen?
The accident on 13 Aug 1985 involved a Piper PA-28-140, registration N9912W, at May, TX.
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