As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
KHA - FLT 278 - PHX-DFW - DURING CRUISE, THE UPPER CARGO COMPARTMENT SMOKE DETECTOR ILLUMINATED. VISUAL INSPECTION DID NOT DETECT ANY SMOKE IN CARGO AREA. AN UNEVENTFUL LANDING WAS MADE AT DFW. INSPECTION FOUND THE NR 6 SMOKE DETETECTOR FAILED TO TEST. THE SMOKE DETECTOR WAS REPLACED AND THE SYSTEM OPERATIONLLY CHECKED GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE. (M)