As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TROUBLESHOT ENGINE OIL CONSUMPTION AND LEAKAGE. FOUND OIL LEAK AFTER NUMEROUS ATTEMPTS TO NARROW OIL LEAK TO A CENTRAL LOCATION. DISCOVERED OIL LEAKING FROM AIR CONDITIONER COMPRESSOR ACCESSORY DRIVE PULLEY SHAFT. REMOVED DRIVE PULLEY AND GARLOCK SEAL AND DISCOVERED SHAFT O-RING WAS MISSING FROM SHAFT ASSY. THIS ENGINE HAD 304.2HRS TSOH.