As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ENGINE CHIP PLUG INDICATION NOTED WITH NO CHANGE IN ENGINE PARAMETERS, ENGINE SHUT DOWN CARRIED OUT IN CRUISE FLIGHT. INSPECTION OF OIL CHIP PLUG AND ENGINE OIL FILTER REVEALED METAL TRACES, ENGINE WAS REMOVED FOR FURTHER INSPECTION.