As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON REMOVAL OF NR 2 ENG MAIN OIL FILTER, PROTECTIVE PLASTIC CAPS ON FILTER FEET FOUND NOT REMOVED, AND DISINTGRATED. SOME DEBRIS FOUND IN FILTER. ENGINE FILTER REPLACED ON TASK 63-7921-1-0002. ENGINE IDLE RUN REQUIRED AS STATED BY POWERPLANT. ENGINE GROUND RUN OF NR 2 ENGINE COMPLETED IAW AMM TASK 71-00-00-712-021-N00, NO DEBRIES FOUND ON FILTER POST ENGINE RUN. REPLACED MAIN OIL FILTER AGAIN. MAIN OIL FILTER ELEMENT REPLACED IAW AMM 79-21-05-404. OPS TEST GOOD.