As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT GOING FROM MWH TO BFI, PILOT NOTICED PROPELLER STARTED TO WANDER AND OIL PRESSURE DROPPED SLIGHTLY, PILOT SHUT DOWN LEFT ENGINE 30 MILES FROM BFI. AIRCRAFT LANDED AT BFI. MECHANIC FOUND LEFT WHEEL WELL FULL OF OIL. MECHANIC FOUND OIL TANK HAD TWO SMALL HOLES IN IT FROM CORROSION. OIL TANK WAS CHANGED AND AIRCRAFT RETURNED TO SERVICE. (M)