As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 4931 - CMH - CREW REPORTS, AFT CARGO SMOKE CWP CAPTION ILLUMINATED. CREW SHOT AFT FIRE EXTINGUISHING SYSTEM. DECLARED EMERGENCY, CFR ARRIVED AND FOUND NO SMOKE OR FIRE INDICATIONS. LANDED WITHOUT FURTHER INCIDENT. REMOVED AND REPLACED AFT SMOKE DETECTOR AND FIREBOTTLE. (M)