As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH, NR 1 ENGINE FIRE WARNING LIGHT ILLUMINATED. NO OTHER INDICATIONS OF FIRE WERE NOTED. THE AIRCRAFT MADE AN UNEVENTFUL LANDING AND WAS SHUT DOWN. NR 1 ENGINE FIRE DETECTOR AMP WAS FOUND BAD. REPLACED AMP. GROUND CHECK, OKAY.