As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MGB OIL COOLER FAN DRIVE SEAL LEAKING 463.2 HOURS AFTER OVERHAUL CAUSING OIL TO CONTAMINATE OIL COOLER FAN BEARINGS WHICH ARE GREASE BEARINGS. SEAL WAS REPLACED AND FAN WAS REPLACED AS PRECAUTIONARY MEASURE DUE TO UNKNOWN CONDITION OF FAN BEARINGS.