As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, THE NR 5 MAIN DECK CARGO SMOKE DETECTION SYSTEM INDICATED A FIRE. THE OVERHEAD CARGO FIRE LIGHT ILLUMINATED AND THE MASTER FIRE WARNING ACTIVATED. VISUALLY INSPECTED CARGO ON MAIN DECK WITH NO SIGNS OF FIRE OR SMOKE. AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. REPLACED THE NR 5 -A- AND -B- SMOKE DETECTORS AND THE NR 5 SMOKE DETECTOR AMP. OPERATIONAL CHECK GOOD.