As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW CREW REPORTED TAIL COMPARTMENT HIGH LIGHT ILLUMINATED DURING CLIMBOUT. EMER DECLARED FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. ACFT REMOVED FROM SERVICE. HEAVY AIR LEAK AT GND AIR CONDITIONING CHECK VLV ON RT SIDE & GASKET ON LT SUPPLY TEMPERATURE HIGH SENSOR. REPLACED GND AIR CONDITIONING RT CHECK VLV & LT SUPPLY TEMPERATURE HIGH SENSOR. SYS GND CHECKED NORMAL, OPERATION CLOSED.