As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT ENGINE WAS SHUTDOWN IN FLIGHT DUE TO EXTREME SHAKING. PROP FEATHERED OK AND AIRCRAFT LANDIED WITHOUT FURTHER INCIDENT. AFTER ENGINE SHUTDOWN PILOT NOTED OIL RUNNING OUT OF ENGINE ON IB SIDE. POST LANDING INSPECTION REVEALED SEPARATED CRACK ABOVE THE NR 5 CYLINDER FLANGE. (K)