As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLT 3691, NR 3 ENGINE LOST OIL PRESSURE. SHUTDOWN INFLIGHT. MAINTENANCE REMOVED AND REPLACED NR 3 ENGINE ASSEMBLY IAW TASK CARD 7100-502. IAW TASK CARD 7100-502.LK AND OPS CHECKS GOOD. PN ON AND OFF LF507-1F SNON P07811 SN OFF LF-07629.