As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#8518, JFK-BOS. (ETOPS) ENG 2 FIRE LOOP B FAULT ( ENGINE FIRE DETECTION SYSTEMS 2) LOOP B ). AFTER REPAIRING WIRE 2612-0278 ON #2 ENG AND REMOVAL AND REPLACEMENT OF AGB AND CORE CHANNEL B LOOPS. A SUCCESFUL OPS TEST WAS ACCOMPLISHED PER AMM 26-12-00. THIS MDDR IS CLEARED. PLACRD REMOVED. UPDATED MX-4.