What was found
IAH - DURING MAINTENANCE INSPECTION A BURNING SMELL IN THE COCKPIT WAS NOTICED. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND THE WINDSHIELD HEAT 1 CONTACTORS K0079EBC1, AND K0001 TO BE BURNT. MAINTENANCE REMOVED AND REPLACED THE AFFECTED RELAYS, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.