As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE NR 3 ENGINE BEGAN TO LOSE OIL QUANTITY AFTER TAKEOFF. THE NR 3 ENGINE WAS SHUT DOWN AND THE AIRCRAFT WAS RETURNED TO EWR WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND PLUG ON FORWARD END OF OIL COOLER LEAKING. THE O-RING PLUG WAS REPLACED. THE NR 3 ENGINE WAS SERVICED TO FULL. A LEAK CHECK WAS PERFORMED AND NO LEAKS WERE NOTED.