As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - INFLIGHT T1507/12MAR - CREW REPORTED AFT CARGO FIRE LIGHT ILLUMINATED. DISCHARGED BOTTLES ONE AND TWO. LANDED WITHOUT INCIDENT. NO EVIDENCE OF FIRE FOUND. REPLACED FIRE EXTINGUISH BOTTLE AND AFT CARGO LINE FILTER. REPLACED AFT CARGO ELECTRONIC UNIT AND NUMBER TWO SMOKE DETECTOR. SYSTEM GROUND CHECKED NORMAL OPERATION.