As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OPERATOR COMPLAINT OF SMALL OIL LEAKS IN CRUISE FLIGHT. CLEANED ENGINE AND RAN, TO INSPECT FOR OIL LEAKS. AFTER EXTENSIVE VISUAL INSPECTION AND DYE PENETRANT INSPECTIONS (3) CRACKS IN THE CRANKCASE WERE DISCOVERED. (2) CRACKS WERE NOTED EXTENDING FROM TOP FORWARD CASE HALF BOLT HOLES. (1) CRACK WAS NOTED ON THE TOP LEFT CASE UNDER THE MAGNETO AREA. (K)