As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#354, DUB-JFK. (ETOPS) ENG 1 FIRE LOOP B ( ENGINE FIRE DETECTION SYSTEMS 2) LOOP B ); REF LOGPAGE 4353751 ITEM #1 FOR REMOVED AND REPLACED OF AFT FIRE LOOP ASY REMOVED AND REPLACED. MDDR CLEARED DUE TO NO FAULTS SINCE THE LOOP HAS BEEN CHANGED. MX-4 UPDATED PLACARD RMEOVED MCC NOTIFIED.