What was found
(CAN) THE A/C WAS IN NORMAL FLIGHT AND NOTED AN OVERSPEED CONDITION FROM CRUISE RPM TO FULL POWER. CYCLING THE PROP PITCH CONTROL DID NOTHING; THE PILOT EXECUTED A FORCED LANDING. AME REMOVED THE PROP GOVERNOR AND NOTICED IT WAS SEIZED AND CONTAMINATED. REMOVED THE OIL FILTER AND NOTICED IT WAS CONTAMINATED WITH METAL PARTICLES. DRAINED THE OIL PAN WITH FRESH VARSOL AND FLUSHED THE PAN TO CLEAN ANY CONTAMINATES. INSTALLED FRESH NEW OIL AND INSTALLED NEW GOVERNOR. GROUND RUN UP WAS SATISFACTORY FOR FERRY FLIGHT TO REQUIRED BASE. PROP AND ENGINE REMOVED DUE TO OVERSPEED AND SENT TO REPAIR STATION FOR INSPECTION. (TC NR 20061005011)