As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 789 - AFTER TAKEOFF DFW DURING CLIMB-OUT, TAIL COMPARTMENT HIGH TEMPERATURE LIGHT ILLUMINATED. ACCOMPLISHED QRH PROCEDURES AND AIRCRAFT RETURNED DFW, LANDING WITHOUT INCIDENT. REPLACED LT AIR CYCLE MACHINE SUPPLY DUCT CLAMP. SYSTEM LEAK AND GROUND CHECKED NORMAL OPERATION. (X)