BAYLESS, CA, USA
N6569K
SCHWEIZER G-164C
DURING CRUISE FLIGHT, N6569K EXPERIENCED A TOTAL LOSS OF ENGINE POWER. FLAMES AND PIECES OF METAL WERE OBSERVED COMING FROM THE ENGINE EXHAUST PIPE OF THE PRATT & WHITNEY PT6A TURBINE ENGINE. THE PILOT INITIATED A FORCED LANDING. DURING THE LANDING ROLL, THE LANDING GEAR COLLAPSED AND THE AIRPLANE COLLIDED WITH THE TERRAIN. DURING POST ACCIDENT INVESTIGATION THE ENGINE WAS DISASSEMBLED AND IT WAS FOUND THAT A PIECE FROM ONE OF THE TURBINE BLADES SEPARATED AND DAMAGED THE REMAINING TURBINE ASSEMBLIES DOWN STREAM.
THE DEPARATION OF A TURBINE BLADE FOLLOWED BY A FORCED LANDING DURING WHICH THE LANDING GEAR COLLAPSED DUE TO OVERLOAD FORCES.
Source: NTSB Aviation Accident Database
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