As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DECLARED EMERGENCY, FWD CARGO FIRE LIGHT ILLUMINATED EN ROUTE TO PHX. THE LIGHT WAS EXTINGUISHED AFTER 30 SEC'S. THE CARGO SYSTEM WAS ARMED AND THE DISCHARGE BUTTON DEPRESSED. PERFORMED CARGO FIRE SUPPRESSION SYSTEM TEST PER MM AND FOUND NO FAULTS. REMOVED AND REPLACED NR 2 CARGO FIRE BOTTLE FOR COMPANY CONVENIENCE PER MM. NOTE NR 2 CARGO FIRE BOTTLE WAS NOT DISCHARGED. CHANGED ONLY FOR CONVENIENCE. REMOVED FIRE DET CENTRAL CONTROL UNIT PER MM.