As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE WAS REMOVED FROM AC, NR1 POSITION FOR REPORTED LOSS OF OIL QUANTITY IN FLIGHT. THE ENGINE WAS SHUTDOWN IN-FLIGHT. INCOMING INSPECTION REVEALED OIL IN THE TAILPIPE AND TURBINE AREA. DISASSEMBLY REVEALED A FAILED BEARING IN THE NR 4 AND NR 5 SCAVENGE PUMP, RESULTING IN OIL PUMP SEIZURE AND LOSS OF OIL SCAVENGING ABILITY. THE PUMP AND BEARING TIME, TIME SINCE OVERHAUL IS UNKNOWN.