As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS INSIGNIFICANT SYSTEM, BTB ENG FIRE LP 2 LIGHT ON EICAS CAME ON DURING TAXI. REMOVED AND REPLACED NR 2 FIRE WALL LOOP DETECTOR ELEMENT PER AMM 26-11-02-024-001 AND 26-11-02-424-009-00 2 ON NR 2 ENGINE. OPERATIONAL TESTED OK, OK FOR SERVICE.