As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AIRCRAFT WAS ENROUTE TO A FIRE FROM KAMLOOPS, DURING CRUISE THE OIL PRESSURE WAS NOTED TO BE LOW ON THE RIGHT HAND ENGINE. THE ENGINE WAS SHUTDOWN AND THE PROPELLER WAS FEATHERED. THE AIRCRAFT RETURNED TO THE KAMLOOPS TANKER BASE. THE ENGINE WAS REPLACED WITH A SERVICEABLE UNIT AND THE AIRCRAFT WAS RETURNED TO SERVICE.