As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OIL PRESSURE DROPPED TO UPPER YELLOW AREA ON APPROACH TO LANDING. FOUND FERROUS AND NON-FERROUS METAL IN FILTER. ENGINE TORN DOWN, FOUND THRUSTBEARING BEARING BROKEN. SUBMITTER SUSPECTED PIECES WENT THROUGH PROPELLER DRIVE AND DRIVE GEARS CAUSING DAMAGE TO BOTH GEARS.