What was found
SHV - FLT 4109 - WITH TEMPERATURE CONTROL IN AUTO, THE FLIGHT ATTENDANT REPORTED A SMELL AND SMOKE IN THE CABIN. AFTER SWITCHING TEMPERATURE CONTROL TO MANUAL, THE SMELL CLEARED. INSPECTED NR 2 AIR CONDITIONING PACK AREA AT WING ROOT AND AUTO. NO DEFECTS WERE NOTED. AIRCRAFT RETURNED TO SERVICE. (X)