As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE STATUS MESSAGE "ENG 2 FIRE LP B" CMC MSG: 26023 ACTIVE. PERFORMED T/S IAW IFIM 26-11 TASK 854; FOUND UPPER AFT FIRE/OVERHT DETECTOR LP B ON ENG-2 FAULTY. RESISTANCE ABOVE 2.2 MOHM. REPLACED LOWER FWD FIRE LOOP ASSY AS PER AMM 26-11-02/401 AND PERFORMED FIRE SYSTEM GROUND TEST AS PER AMM 26-11-00/501 RESULT PASS.