As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 7764 - LAX - FLIGHT CREW REPORTED ENG NR 2 FIRE DETECTION FAIL MSG ON EICAS FOR 15 SEC DURING DESCENT. MX PERSONNEL REMOVED NR 2 ENG FIRE LOOP ASSY AND CONTROL MODULE OPERATIONALLY CHECKED SATISFACTORY, AIRCRAFT WAS RELEASED TO RETURN FOR SERVICE.