As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 5835 - MEM-PFN - ON CLIMB-OUT, CREW RECEIVED CARGO SMOKE WARNING. DETERMINED THAT THIS WAS A FALSE WARNING. PER MAINTENANCE CONTROLS INSTRUCTION AIRCRAFT RETURNED TO MEMPHIS WITH UNEVENTFUL LANDING. FOUND FOREIGN MATERIAL IN CONTROLLER ELECTRICAL CONNECTOR (DIRT), CLEANED CONNECTOR SYSTEM CHECKED GOOD. (M)