As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#123, JFK-LAX. (ETOPS) ENG FIRE LOOP 2 FAULT ON ECAM ( ENGINE FIRE DETECTION SYSTEMS 1) LOOP A ). REF AMM 26-12-00. AS PER MCC REQUEST MDDR CLEARS MONITORING. PERFORMED TEST OF FDU 2 TEST PASS MDDR CLR MX-4 UPDATED PLACA RMVD NO DEFECTS NOTED.