As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#288, LAX-BOS. (ETOPS) 'ECAM-ENG #1 FIRE LOOP B FAULT APPEARED 2 TIMES TRANSIET FOR APPROXIMATELY 10 SECONDS AND WENT AWAY; REMOVED AND REPLACED OF FDU ENG #1 FIRE LOOP IAW AMM 26-12-34. FDU #1 TEST OPS OK. THIS CLEARS MDDR 531105. MX-4 UPDATED PLACARD REMOVED.'