As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED. EMERGENCY DECLARED. DFW-COS FLIGHT RETURNED TO DFW ACCOUNT TAIL COMPARTMENT OVERHEAT INDICATION. LANDING UNEVENTFUL. REMOVED AND REPLACED AIR CONDITIONING FLOW CONTROL VALVE CLAMP IAW AMM 21-31-02. LEAK AND OPERATIONAL CHECK GOOD. (CLOSED)