What was found
WINDSHIELD WIPER DOES NOT OPERATE IN ANY SWITCH POSITION TOMC APPROVED TO PLACE CAPT WINDSHIELD WIPER ON DEFERRAL PER MEL 3013C, DDP C/W OPER CK OF LEFT WIPER NORMAL IN ALL POSITIONS OF SW, ADJUSTED WIPER BLADE FOR PARALLEL TO LOWER EDGE IAW AMM 30-42-11/401, NO OTHER HISTORY OF THIS FAULT, REMOVED PLACARDS , AC IS RESTORED TO FULL AUTOLAND STATUS.