As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DECENDING THRU 14,000` RECEIVED "CARGO FIRE ALERT" COMPLIED WITH QRH AND DISCHARGED BOTH FIRE BOTTLES. NEVER HAD ANY SECONDARY INDICATIONS OF FIRE. REMOVED AND REPLACED ALL LOWER CARGO COMPARTMENT SMOKE DETECTOR PER MM 26-14-01-4. INSTALLED NR 2 CARGO FIRE BOTTLE PER 26-22-01-4 THROUGH STEP J. OK FOR SERVICE.