As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERSION/INFLIGHT SHUTDOWN - SUSPECT OIL LEAK NR 1 ENGINE. OIL QTY 35% ON SHUTDOWN. NEVER LOST OIL PRESSURE. NO CAUTIONS OR WARNINGS. ALL INDICATIONS ON NR 1 ENGINE NORMAL THROUGHOUT THE FLIGHT AND THROUGH SHUTDOWN. REMOVED AND REPLACED NR 1 ENGINE PER TASK.