As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#34, CDG-BOS. (ETOPS) ENG 2 FIRE LOOP A FAULT INOP - REPEAT WRITE-UP ( ENGINE FIRE DETECTION SYSTEMS 1) LOOP A )'; CHECK PER TSM 26-12-00-810-805-A. FOUND DET-FIRE CORE AGB LOOP A (4002WD1) SHORTED TO GROUND. R/R DET-FIRE CORE AGB LOOP A IAW AMM 26-12-17. PERFORMED OPS CHECK. OPS CHECK GOOD. MX-4 UPDATED, MDDR CLEARED. PLACARD REMOVED.