MCGRATH, AK, USA
N98JH
de Havilland DHC-2
WHILE CRUISING, THE PILOT-IN-COMMAND EXPERIENCED A ROUGH ENGINE AND FINALLY AN UNEXPLAINED POWER REDUCTION TO IDLE. HE WAS UNABLE TO GLIDE THE FLOAT EQUIPPED AIRPLANE TO A BODY OF WATER AND EXECUTED A FORCED LANDING ON THE TUNDRA WHERE THE AIRPLANE SUSTAINED SUBSTANTIAL DAMAGE. EXAMINATION OF THE ENGINE REVEALED A FAILED EXHAUST VALVE.
Source: NTSB Aviation Accident Database
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