As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS - ENG 1 FIRE LOOP B FAULT CAME ON MULTIPLE TIMES DURING CRUISE AND WOULD EXTINGUISH. FOUND THERMAL DAMAGE ON CONTACTS OF 454VC1. REPLACED ALL 4 CONTACTS OF 454VC1 PER ESPM 20-48-24. FDU 1 OPS CHECK OK PER AMM 26-12-00. PERFORMED ENGINE RUN PER AMM 71-00-00-860-823-A. NO FAULTS NOTED, OPS CHECK NORMAL. OK FOR SERVICE.