As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE OPENING A NEW PUROLATOR OIL FILTER THE TECHNICIAN NOTICED A PIECE OF METAL MATERIAL LOCATED ON THE INSIDE DIAMETER OF THE FILTER JUST BELOW THE O-RING. THE MATERIAL LOOKS LIKE THE SAME MATERIAL WHICH COMPOSES THE METAL SCREEN WHICH IS PART OF THE FILTER.