As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 3576 - CARGO SMOKE LIGHT CAME ON AFTER LANDING. FIRE BOTTLE WAS BLOWN AND THE LIGHT REMAINED ON. INSPECTED THE CARGO BIN AND COULD NOT FIND ANY SIGN OF SMOKE OR FIRE. REPLACED CARGO FIRE BOTTLE AND CARGO SMOKE DETECTOR AS PRECAUTIONARY. OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (X)