As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - CREW REPORTED DURING CLIMBOUT TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED WITH BOTH PACKS SHUT DOWN. EMERGENCY DECLARED FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND CLAMP ABOVE LEFT PACK SUPPLY TEMPERATURE SENSOR LEAKING DIRECTING HOT AIR TOWARD TAIL COMPARTMENT TEMPERATURE SENSOR. REPLACED CLAMP. SYSTEM GROUND CHECK NORMAL OPERATION.