As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT CRANKCASE LOWER FRONT ALTLERNATOR SUPPORT MOUNT LUG BROKE OUT OF CRANKCASE AND LEFT A HOLE 1.50 INCHES IN DIAMETER. CAUSE UNKNOWN. CREATED OIL LEAK WITH OIL ON WINDSHIELD DURING FLIGHT. REMOVED ENGINE AND INSTALLED LYCOMING REBUILT.