What was found
THE CREW REPORTED THAT THE NR 1 WINDSHIELD HEAT CAUSES SMOKE SMELL. WHEN DESLECTED, SMOKE, SMELL GOES AWAY. THE AIRCRAFT LANDED AT IAH WITHOUT INCIDENT WHERE MAINTENANCE INSPECTED THE NR 1 WINDSHIELD TERMINAL BLOCK, OPERATIONALLY CHECKED WINDSHIELD HEAT AND WAS UNABLE TO DUPLICATE THE SMELL, AND NO OTHER DEFECTS WERE NOTED. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.