As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS - ENGINE 1 FIRE LOOP A FAULT. T/S ENG 1 CHECK WIRE FROM FDU 1 LOOP A, J AND K SHORTING TO GROUND. PER AWM 26-12-05. FOUND WNVRN12 (4181KS) INTERMITTENT. REMOVED LOOP A FIRE DETECTOR CABLES PER AMM 26-12-61.(3752). CONTINUE ON LOG PG # 1047623 ITEM 2. INSTALLED WNVRN12 (4181KS) PER AMM 26-12-61. OPERATIONAL CHECK OK PER AMM 26-12-00.