As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD - INFLIGHT DCA-DFW. CREW REPORTED TAIL COMPARTMENT HIGH TEMPERATURE LIGHT ILLUMINIATED ON CLIMBOUT. EMERGENCY DECLARED FLIGHT DIVERTED IAD LANDED WITHOUT INCIDENT. TIGHTENED CLAMPS TO LEFT AUGMENTATION VALVE. SYSTEM GROUAN CHECK NORMAL OPERATION.