As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW INFLIGHT T465/26DEC TAIL COMPARTMENT HIGH TEMPERATURE LIGHT ILLUMINATED DURING CLIMBOUT. LIGHT DID NOT EXTINGUISH WITHIN THE TWO MINUTE TIME LIMIT. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. FOUND DUCT CRACKED. REPLACED WATER SEPARATOR DUCT. SYSTEM GROUND CHECKED NORMAL OPERATION.