As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE CONDUCTING AN ANNUAL INSPECTION, DISCOVERED SEVERAL SUSPICIOUS BROWN STAINS. AREA WAS CLEANED AND A DYE PENTRANT INSPECTION PERFORMED. CRACKS WERE FOUND RADIATING CIRCUMFERENTIALLY AROUND CRANKSHAFT AND FLANGE IN THE AREA OF THE FLANGE RADIUS. PROP HAD BEEN REMOVED TO DETERMINE CRANKSHAFT SERIAL NUMBER FOR EVALUATION OF OVERHAUL AND SB COMPLIANCE.