As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DW - FLT 1203 - EN ROUTE SJU/DFW DURING CRUISE, AFT CARGO DETECTION STATUS CAME ON IN-FLIGHT. DISCHARGED BOTH AFT CARGO FIRE BOTTLES. AIRCRAFT LANDED DFW WITHOUT INCIDENT. CHECKED AFT CARGO COMPARTMENT AND CARGO FOR EVIDENCE OF FIRE OR OTHER DAMAGE WITH NO DEFECTS NOTED. REPLACED BOTH FIRE WARNING DETECTORS AND THE TWO FIRE BOTTLES/SQUIBS THAT WERE EXTINGUISHED IN-FLIGHT. SYSTEM GROUND CHECKED, NORMAL OPERATION. (X)