As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LOAD CROSS-CHECK, LOWER AFT CARGO COMPARTMENT FIRE LIGHT AND THE MASTER WARNING LIGHT ILLUMINATED. SHUT ENGINES DOWN AND EVACUATED THE AIRCRAFT. INSPECTED FOR SIGNS OF FIRE OR SMOKE, NONE FOUND. CARGO SMOKE DETECTOR SYSTEM TESTED GOOD.