As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CRUISE THE PILOTS NOTICED A DROP IN OIL QUANTITY ON THE NR 2 ENGINE. THE ENGINE WAS SHUTDOWN AND PROPELLER FEATHERED. MAINTENANCE WAS CONTACTED AT ARRIVAL, THE OIL DRAIN TUBE WAS REPLACED AND THE AIRCRAFT RETURNED TO SERVICE.