As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JUST PRIOR TO TOP OF DESCENT, RECEIVED A FIRE LOOK UP LIGHT WITH ALL MAIN CARGO FIRE INDICATORS ILLUMINATED. QRH COMPLETED & AN EMERGENCY DECLARED. THERMO IMAGED THE ENTIRE AIRCRAFT AND OBSERVED NO SIGNS OF FIRE . AMM 26-16-98-4-0 DURING INSPECTION, FOUND COCKPIT MAIN DECK SMOKE CONTROL PANEL FAULTY. REMOVED & REPLACED IAW AMM 26-16-98-4-0. ALL TESTS OK, NO FIRE INDICATIONS OR DEFECT FOUND. ACFT OK FOR SERVICE.