As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
97-0094, NR 1 ENGINE FIRE LIGHT BELL AND DETECTOR FAULT LIGHT ILLUMINATED IN FLIGHT FOR 5 SECONDS. DETECTOR SYSTEM WAS IN LOOP-A AS PER MINIMUM EQUIPMENT LIST. LOOP-B FAILED TEST, NO OTHER ABNORMAL ENGINE INDICATIONS. REMOVED AND REPLACED FIRE DETECTOR ELEMENT AND ENGINE FIRE CONTROL UNIT. OPERATIONAL CHECK OF FIRE DETECTOR CHECKED GOOD. ALSO, CHECKED PNEUMATIC LEAKS, NONE NOTED.