As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) LARGE AMOUNT OF METAL DISCOVERED IN ENGINE OIL FILTER DURING INP. ENGINE IS BEING SENT OUT TO ENGINE AMO TO INSPECT FOR DEFECTS AND REPAIR. TSO: 551 HRS. ENGINE IS ON A TC APPROVED MX SCHEDULE AND APPROVED TO BE ON-CONDITION. DISCOVERED DURING "ON CONDITION" INSPECTION.