As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) SHORTLY AFTER TAKEOFF, THE LEFT PROPELLER AUTO FEATHERED. THE ENGINE WAS NOT SHUTDOWN AS THE PROP WAS ALREADY FEATHERED. THE CREW LANDED SAFELY. INVESTIGATION BY MAINTENANCE REVEALED SOME METAL CONTAMINATION IN THE RGB OIL STRAINER. THE ENGINE WILL BE REPLACED & SENT OUT FOR INSPECTION & REPAIR.