As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH RECEIVED A FIRE WARNINGS IN BOTH FWD AND AFT CARGO BAYS SIMULTANEOUSLY. FOLLOWED QRH AND SHOT BOTH BOTTLES. NO INDICATIONS IN CABIN. INSPECTED CARGO BINS. NO EVIDENCE OF FIRE OR SMOKE. RAN APU BLEED AND AFT CARGO HEAT CKS. GOOD. INSPECTED CARGO FIRE DETECTION PANEL AND CONNECTORS NO TROUBLE FOUND. REPLACED CARD M10427 IAW AMM 26-10-01. REPLACED CARGO FIRE EXTINGUISHER BOTTLES IAW AMM 26-23-02. PERFORMED SYS TEST IAW AMM 26-23-00. CKS GOOD.