As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABQ - DFW - RETURNED ABQ SHORTLY AFTER TAKEOFF DUE TO THE AFT CARGO COMPARTMENT HIGH TEMPERATURE LIGHT ILLUMINATED. CREW WAS ABLE TO EXTINGUISH THE LIGHT BUT ELECTED TO RETURN ABQ. AIRCRAFT REMOVED FROM SERVICE. FOUND SIX INCH DUCT WITH LARGE LEAK. REMOVED AND REPLACED DUCT. SYSTEM GROUND CHECKED NORMAL OPERATION.