What was found
IAH - FLIGHT 2411, THE CREW REPORTED A ENGINE ONE EXCEEDANCE AT TOP OF CLIMB WITH THE THRUST LEVER IN DETENT ITT AMBER JUST ABOVE 900 DEGREES AND N2 AT ABOUT 101 PERCENT, THE ENGINE STABILIZED WITH REDUCED THRUST, AND THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NUMBER 3 & 17 THERMOCOUPLES, AND REMOVED AND REPLACED THE COMPRESSOR ACCELERATION CONTROL VALVE, OPERATIONALLY AND LEAK CHECKED WITH NO DEFECTS NOTED, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.