As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3812 -IFSD- ON APPROACH AT FL100 CREW RECEIVED A RIGHT ENGINE OIL FILTER BYPASS INDICATION. QRH WAS PERFORMED AND ENGINE WAS SHUT DOWN BY CREW AT FL050. EMERGENCY DECLARED AND A/C HAS LANDED SAFELY. CORRECTIVE ACTION: MAINTENANCE IN PROGRESS. FOUND LARGE AMOUNTS OF METAL DEBRIS ON AGB/TGB MCD. REPLACED ACCESSORY AND TRANSFER GEARBOXES PER B737 AMM 72-62 AND 72-63. INSTALLED SERVICEABLE EEC ALTERNATOR AND ROTOR PER 737 AMM 73-21. ENGINE RUN, LEAK CHECK AND EEC BITE CHECK GOOD. REF AMM 71-00.