As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) LT ENGINE PROPELLER GOVERNOR FAULTY. INVESTIGATION FOUND OIL PUMP GEAR PN A20107 WORN, PIVOT PIN PN A20026 EXTREMELY WORN AND BEARING PN A20028 DESTROYED. THE HOUSING WAS GOUGED TO A DEPTH OF APPROXIMATELY 3.175MM (0.125IN) IN THE BEARING AREA AND THE PUMP WALL WERE BADLY SCORED. METAL CONTAMINATION OF ENGINE OIL SYSTEM.