FARMERVILLE, LA, USA
N70541
CESSNA 182L
THE PILOT REPORTED THAT HIS TAKEOFF AND CLIMB TO 2200 FT MSL WERE NORMAL. AFTER THE PLANE WAS IN CRUISE CONFIGURATION, HE HEARD AN ABNORMAL NOISE AND DECIDED TO RETURN TO THE AIRPORT. THE NOISE LEVEL INCREASED AND THE ENGINE BEGAN TO VIBRATE. THE PILOT OBSERVED A PIECE OF METAL PROTRUDING THROUGH THE COWLING. HE SHUT DOWN THE ENGINE, TURNED OFF THE MASTER SWITCH, AND SELECTED AN AREA FOR A FORCED LANDING. BEFORE LANDING, THE MASTER SWITCH WAS TURNED ON MOMENTARILY TO LOWER THE FLAPS. THE PLANE WAS SUBSTANTIALLY DAMAGED WHILE LANDING ON HILLY TERRAIN. AN INVESTIGATION REVEALED THAT THE NO. 2 CONNECTING ROD HAD BECOME DISCONNECTED FROM ITS CRANKPIN. THE BEARING HAD DISINTEGRATED, THE CRANKPIN HAD TURNED BLACK FROM THERMAL DAMAGE, AND THE ROD BOLTS HAD BROKEN. THE EXACT CAUSE OF THE FAILURE WAS NOT DETERMINED.
Source: NTSB Aviation Accident Database
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