As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#278, LAS-BOS. (ETOPS) 'ENG 2 FIRE LIGHT ON ENG CONTROL PANEL INOP ( FIRE LIGHTS ON ENG CONTROL PANEL ); AFTER ENG 2 LOOP B DETECTOR REPLACMENT (4WD2) CENTER CONSOLE FIRE ANNUNCATIOR ENG 2 OPS CHECK NORMAL THIS CLEARS MDDR 531821 MX4 UPDATED PLACARD REMOVED.