As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TAIL COMPARTMENT TEMPERATURE LIGHT CAME ON DURING CLIMB AND REMAINED ON AFTER 2 MINUTES. THE LIGHT WAS ON AND OFF DURING APPROACH. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. FOUND LOOSE CLAMP ON LEFT HEAT EXCHANGER INLET. TIGHTENED CLAMP AND NO LEAK NOTED.