As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - CREW REPORTED TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED AFTER TAKEOFF. EMERGENCY DECLARED, FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED BROKEN CLAMP ON RIGHT AIR CYCLE MACHINE DISCHARGE BOOT. SYSTEM GROUND CHECK NORMAL OPERATION.