As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED TO DEPARTURE DUE TO RIGHT ENGINE ISSUES. THE CREW REPORTED THAT ON TAKEOFF AT FL50 THE NR 2 ENGINE LOST OIL PRESSURE, HYDRAULICS AND STARTED VIBRATING. THE QRH WAS FOLLOWED AND THE ENGINE WAS SHUT DOWN. THE NR 2 ENGINE WAS REPLACED.