As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED INFLIGHT NR1 ENGINE SHUTDOWN DUE TO LOSS OF OIL PRESSURE DURING FLIGHT AFTER C1/C2 INSPECTION. DECLARED IFE AND DIVERTED. UPON INSPECTION BY MAINTENANCE, THE NR1 ENGINE REQUIRED FIVE QUARTS OF OIL. CAUSE AND CORRECTIVE ACTION REMAINS UNDER INVESTIGATION AT THIS TIME.