As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW INFLIGHT T2312/15JUN. CREW REPORTED TAIL COMPARTMENT HIGH TEMPERATURE INDICATION. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. LIGHT EXTINGUISHED PRIOR TO LANDING. FOUND RUBBER BOOT ON RT AIR CYCLE MACHINE LEAKING BETWEEN HEAT EXCHANGER AND PACK CONTROL VALVE. REPLACED AIR CYCLE MACHINE AND TEMPERATURE TABS ON BOTH SIDES. SYSTEM GROUND CHECKED NORMAL OPERAION. (A)