What was found
ON FLIGHT 2726 THE CREW REPORTED AN ELECTRICAL ODOR IN THE COCKPIT THAT SMELLED LIKE BURNING PLASTIC. THE CREW DECLARED AN EMERGENCY AND RETURNED TO DFW. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. FOUND SLEEVES ON DUAL TEMP CONTROL VALVE LEAKING AND DETERIORATING REMOVED AND REPLACED SLEEVE IAW EMB 140 AMM 21-60-01. THE OPERATIONAL CHECK WAS GOOD NO LEAKS NOTED AT THIS TIME. THE AIRCRAFT WAS RETURNED TO SERVICE.