As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - (REPEAT ITEM) CREW REPORTED TAIL COMPARTMENT HIGH TEMPERATURE LIGHT ILLUMINATED DURING FLIGHT. EMERGENCY DECLARED FLIGHT RETURNED DFW LANDED WITHTOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND LOOSE DUCT ABOVE RIGHT TEMP CONTROL VALVE. TIGHTENED DUCT. SYSTEM GROUND CHECK NORMAL OPERATION.