What was found
EN ROUTE FROM CLT TO JFK, CREW RECEIVED AN ECAM ANTI-ICE LT WINDSHIELD INOPERATIVE, PRIOR TO ENTERING ICING CONDITIONS. FLIGHT DIVERTED TO PHL FOR MAINTENANCE, FLIGHT LANDED WITHOUT INCIDENT. TROUBLE SHOT IAW TSM 30-42-00-810-801-A, ALL SYS CHECKED GOOD. R & R WHC 1 IAW 30-42-34, OPERATIONS CHECKED GOOD.