As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CLIMB AT FL50, THE OIL PRESSURE FLUCTUATED AND THEN DROPPED TO 0. THE ENGINE WAS SHUTDOWN AND THE ACFT RETURNED TO THE DEPARTURE AIRPORT WHERE AN UNEVENTFUL SINGLE ENGINE LANDING WAS MADE. POST FLIGHT INSPECTION FOUND OIL IN THE THRUST REVERSERS AND LOWER EXHAUST. TROUBLESHOOTING IS ON-GOING.