As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS - ENG 2 FIRE LOOP A FAULT. REMOVED AND REPLACED ENG 2 FDU PER AMM 26-12-34. OPS CHECK FAILED, CONDITION REMAINS. PERFORMED T/S OF ENG#2 FIRE LOOP A PER TSM 26-12-00-810-937-A. FOUND SHORT CIRCUIT FROM 3015VC TO ZONE 2 DETECTOR. REMOVED AND REPLACED HARNESS FROM 3015VC TO ZONE 2 DETECTOR PER ESPM 20-48-13 & AMM 71-51-05. REMOVED AND REPLACED ZONE 2 FIRE DETECTOR ASSEMBLY PER AMM 26-12-19. NO FAULTS FOUND.