As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT INSPECTION, AN OIL CHANGE WAS BEING STARTED AND FOUND METAL SHAVINGS IN SUMP SCREEN AND FILTER. ENGINE WAS REMOVED AND SENT TO OVERHAUL FACILITY FOR TEAR DOWN AND INSPECTION. PRELIMINARY INSPECTION REPORT REVEALED FRONT MAIN CRANKSHAFT BEARING FAILURE.