As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, THE CARGO FIRE LIGHT AND FIRE BELL ACTIVATED AND THE MAIN DECK DETECTOR LIGHT NR 3 ILLUMINATED. NO INDICATION OF SMOKE, FIRE OR FUMES WERE NOTICED DURING INSPECTION OF THE MAIN DECK. FLIGHT CONTINUED ON AND LANDING WAS UNEVENTFUL. MAINTENANCE REMOVED AND REPLACED SMOKE DETECTOR. OPERATIONAL CHECKED GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (A)