As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO FIRE INDICATION AFTER ENGINE SHUT OFF IN BLOCK, RAN QRH CHECKLIST AND DISCHARGED FIRE BOTTLE. CALLED TOWER AS EMERGENCY AIRCRAFT AND ASKED FOR FIRE TRUCKS. FIRE CHIEF FOUND NO ISSUE, NO SMOKE OR FIRE. MAINTENANCE REMOVED & REPLACED #1 AFT CARGO FIRE BOTTLE IAW BAC AMM 767 26-23-02; OPS CHECK GOOD C/W RII FORM 26-04-01. AIRCRAFT RETURNED TO SERVICE.