As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INFLIGHT SHUTDOWN/AIRTURN BACK/DECLARED EMERGENCY. NR 2 ENGINE OIL FILTER BYPASS LIGHT ILLUMINATED IN FLIGHT. REMAINED ON WITH THRUST LEVER CLOSED. ENGINE SHUTDOWN PER QRH. FOUND D404 CONNECTOR FAULTY. REMOVED AND REPLACED CONNECTOR PER MM.