As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIA - AIRCRAFT EXPERIENCED AN INTERMITTENT AFT CARGO FIRE WARNING ON DESCENT INTO MIA. THE NR 1 BOTTLE WAS FIRED. THE SECOND BOTTLE WAS DISCHARGED ON APPROACH PER FM 2-12-3. UPON ARRIVAL, MAINTENANCE INSPECTED SYSTEM AND REPLACED 3 SMOKE DETECTORS AND 1 AMPLIFIER. SYSTEM TEST OK. (X)