What was found
HSV - FLIGHT 2990 THE CREW REPORTED SMOKE IN THE COCKPIT WITH THE SOURCE IN THE VICINITY OF THE STEER DISCONNECT TRIGGER. THE ACFT RETURNED TO HSV WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE PLACED THE CAPTAIN`S CHART HOLDER ON MEL, AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE. THE ACFT LANDED IN IAH WHERE MAINTENANCE REPLACED THE CAPTAIN`S CHART HOLDER. OPERATIONALLY CHECKED WITH NO DEFECTS NOTED, AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE. (S)