What was found
(CAN)#1 ENGINE OIL COOLER CRACKED IN FLIGHT. AIRCRFT RETURNED TO BASE WITH #1 ENGINE FEATHERED. SLIGHT OIL PRESSURE LOSS, 3 LITERS REMAINING ON SHUTDOWN.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN)#1 ENGINE OIL COOLER CRACKED IN FLIGHT. AIRCRFT RETURNED TO BASE WITH #1 ENGINE FEATHERED. SLIGHT OIL PRESSURE LOSS, 3 LITERS REMAINING ON SHUTDOWN.