As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#523, JFK-LAX. (ETOPS) 'ENG 2 FIRE LOOP A FAULT ECAM MSG DISPLAYED ( ENGINE FIRE DETECTION SYSTEMS 1) LOOP A ); REMOVED AND REPLACED ENG # 2 FIRE LOOP COR AGB DETECTOR IAW AMM 26-12-17. THE OPS CHECK IS GOOD. THIS CLEARS MDDR 503833. MX-4 UPDATED AND PLACARD REMOVED.'