As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BEARING FAILURE OF FRONT MAIN BEARING IN THE NR 2 POSITION. FLAKING, BENT, AND DELAMINATED OVER ENTIRE WIDTH OF NR 2 POSITION. MOST OF BEARING SURFACE STILL CONNECTED TO SHELL. DELAMINATION OF BEARING CRANKSHAFT AND CRANKCASE NOT SERVICEABLE AFTER DAMAGE. C/A: CHANGE BACK TO TRIMETAL BEARINGS FROM THESE ALUMINUM/STEEL BACKED TYPE.