As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 734 - FWA-DFW - DURING CRUISE, THE UPPER DECK CARGO SMOKE WARNING LIGHT CAME ON. NO SMOKE OBSERVED ON WALK THROUGH. CREW CONTINUED NORMAL OPERATIONS. REMOVED AND REPLACED BAD NR 1 SMOKE DETECTOR. OPS CHECK GOOD. AIRCRAFT WAS RELEASED FOR SERVICE. (M)