As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ENGINE HAD OIL LEAK WHICH WAS DETERMINED TO BE COMING FROM CRACK ON THE FRONT CRANKCASE BETWEEN NR 3 AND 4 CYLINDER BASE AREA. THIS CRACK WAS ABOUT 3.5 INCHES LONG ORGINATING FROM CRANKCASE THROUGH BOLT UP TOWARDS THE CYLINDER BASES.