A TOTAL ENGINE FAILURE WHEN THE #3 EXHAUST VALVE FAILED, CAUSING INTERNAL DAMAGE TO THE ENGINE. FACTORS RELATED TO THE ACCIDENT WERE: THE PILOT HAD TO MAKE A FORCED LANDING IN UNSUITABLE TERRAIN.
— NTSB Determination
THE AIRPLANE WAS AT 2000 FEET MSL CRUISE ALTITUDE WHEN THE ENGINE FAILED. THE PILOT LOOKED FOR SUITABLE TERRAIN TO MAKE A FORCED LANDING, BUT COULD FIND NONE. DURING THE LANDING THE RIGHT WING STRUCK A TREE. THE EXAMINATION OF THE ENGINE REVEALED THE #3 EXHAUST VALVE FAILED CAUSING INTERNAL DAMAGE TO THE ENGINE.
THE AIRPLANE WAS AT 2000 FEET MSL CRUISE ALTITUDE WHEN THE ENGINE FAILED. THE PILOT LOOKED FOR SUITABLE TERRAIN TO MAKE A FORCED LANDING, BUT COULD FIND NONE. DURING THE LANDING THE RIGHT WING STRUCK A TREE. THE EXAMINATION OF THE ENGINE REVEALED THE #3 EXHAUST VALVE FAILED CAUSING INTERNAL DAMAGE TO THE ENGINE.
The accident on 1990-08-31 involved a Piper J5 CUB, registration N38428, operated by John D. Bouchard, at Douglas, MA.
A TOTAL ENGINE FAILURE WHEN THE #3 EXHAUST VALVE FAILED, CAUSING INTERNAL DAMAGE TO THE ENGINE. FACTORS RELATED TO THE ACCIDENT WERE: THE PILOT HAD TO MAKE A FORCED LANDING IN UNSUITABLE TERRAIN.
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