As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT NOTED OIL LEAK FROM ENGINE AFTER LANDING. MAINTENANCE FOUND A CRACK, APPROXIMATELY 1" LONG, IN THE LT SIDE CRANKCASE APPROXIMATELY 1" AFT OF THE 7TH STUD FOR THE NR 2 CYLINDER WHICH IS LOCATED BEHIND THE OIL COOLER. UNABLE TO SEE THIS CRACK WITH THE OIL COOLER INSTALLED.