As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) OVERHAULED CYLINDER ASSY`S WERE INSTALLED APPROX 500 HRS AGO ONTO A FRETTED CRANKCASE. THE CENTER MAIN BEARING THEN SPUN IN THE BEARING SADDLE. METAL WAS DETECTED IN THE OIL SCREEN AND THE ENGINE WAS SUBSEQUENTLY TORN DOWN FOR OVERHAUL. THE CRANKCASE IS UNSERVICEABLE. (TC NR 20070725006)