As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 3512 - CARGO SMOKE WARNING ILLUMIANTED IN-FLIGHT. CREW BLEW BOTH BOTTLES AND FLIGHT LANDED AT DFW WITHOUT INCIDENT. INSPECTED SYSTEM AND FOUND NO DEFECTS. SUSPECT MOISTURE IN CARGO BAY DUE TO HEAVY RAINS. REPLACED BOTH BOTTLES AND SQUIBS. ALSO, FORWARD AND AFT SMOKE DETECTORS AS PRECAUTIONARY. AIRCRAFT RETURNED TO SERVICE. REF: OPERATOR CONTROL NR SIMA9701872.