What was found
PILOT EXPERIENCED ALTERNATOR FAILURE ON LT ENGINE IN-FLIGHT. UPON INSPECTION AFTER LANDING, FOUND LT SIDE OF AIRCRAFT COVER IN OIL AND LT ALTERNATOR LYING INSIDE OF COWLING. SUSPECT FAILURE OF GOVERNOR ADAPTER ASSY. BUSHING, PN 75539, CAUSED MIS-ALIGNMENT OF ALT DRIVESHAFT WHICH CAUSED COUPLING, PN LW-14464, TO FAIL IN SUCH A MANNER THAT CAUSED ALTERNATOR ADAPTER ASSY, PN LW-10259, TO FAIL. (X)