WOOD RIVER, AK, USA
N6848V
MOONEY M-20F
THE PILOT-IN-COMMAND STATED THT DURING CRUISE FLIGHT THE PROPELLER STOPPED TURNING WITHIN SIX REVOLUTIONS WITHOUT WARNING. HE WAS FORCED TO LAND ON A SAND BAR ON THE WOOD RIVER. DURING THE LANDING THE NOSE GEAR AND RIGHT MAIN GEAR COLLAPSED. EXAMINATION OF THE ENGINE REVEALED THAT THE CONNECTING ROD CAP FROM THE NUMBER 4 CONNECTING ROD HAD FAILED APPROXIMATELY 1/2 INCH FROM THE MATING SURFACE, ABEAM THE HEAD OF THE CONNECTING ROD BOLT.
THE FAILURE OF THE NUMBER 4 CYLINDER CONNECTING ROD COP DUE TO FATIGUE. CONTRIBUTING TO THE ACCIDENT WAS THE ROUGH SURFACE OF THE FORCED LANDING AREA.
Source: NTSB Aviation Accident Database
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