As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AN ERRONEOUS NR 1 ENGINE FIRE INDICATION (FIRE LIGHT) CAME ON IN-FLIGHT WITH NO OTHER SUPPORTING INDICATIONS OF A FIRE. REPLACED NR 1 FORWARD ENGINE FLAME DETECTOR WITH A NEW SERVICEABLE PART AS DETERMINED BY TROUBLESHOOTING OF FIRE DETECTION SYSTEM. CHECKED OUT SYSTEM, OK. SUBSEQUENT FLIGHTS, SYSTEM NORMAL. (X)