As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TEST CELL RUN, ENGINE OIL WAS DRAINED AND THE SUCTION SCREEN AND FILTER WAS CHECKED. A ABNORMAL AMOUNT OF ALUMINUM WAS FOUND. UPON DISASSEMBLY, IT WAS FOUND THAT THE FRONT BEARING HAD FAILED AT THE NR 2 JOURNAL. THE METAL APPEARED TO HAVE DELAMINATED AND TRANSFERRED TO THE CRANKSHAFT THRUST AREA AND CRANKCASE THRUST FACE.