As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - INFLIGHT T493/11JUL - CREW REPORTED TAIL COMPARTMENT HIGH TEMPERATURE LIGHT ILLUMINATED DURING CLIMB THROUGH FLIGHT LEVEL 180. LIGHT EXTINGUISHED AFTER SHUTTING OFF RT A/C PACK. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. FOUND RUPTURED DUCT IN AFT COMPARTMENT ON RT SIDE. REPLACED DUCT IN AFT COMPARTMENT ON RT SIDE. SYSTEM GROUND CHECKED NORMAL OPERATION. (S)