As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE FIRE WARNING LIGHT ILLUMINATED IN CRUISE. DISCHARGED BOTH NR 1 AND NR 2 FIRE BOTTLES. SHUTDOWN NR 1 ENGINE, DIVERTED TO UNSCHEDULED LANDING. LANDING UNEVENTFUL. DETERMINED TO BE FALSE WARNING. INSPECTED ALL WIRING AND FIRE WARNING LOOPS. REPLACED FIRE WARNING SYSTEM AMPLIFIER. SYSTEM OPS CHECKED GOOD IAW DC8 MM 26-10-00.