As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE OIL FILTER BYPASS PIN WAS FOUND POPPED ON THE LT ENGINE. THE OIL FILTER WAS REPLACED AND OIL SAMPLE TAKEN. DAMAGE TO THE REMOVED OIL SAMPLE WAS NOTED. THE MOUNTING FLANGE OF THE FILTER WAS MISSING FROM THE RADIUS INWARD. THE OIL FILTER IS INCLUDED IN THE WEAR CHECK P/N GT-331 OIL SAMPLE KITS.