What was found
EN ROUTE, RECEIVED ECAM MESSAGE FOR ANTI-ICE LT WINDOW THEN HEARD A LOAD NOISE AS LT AFT SIDE WINDOW SHATTERED, PRESSURE WAS NOT LOST, DIVERTED TO GJT. MAINT R & R LT AFT SIDE WINDOW IAW AMM 56-11-12, & REPLACED LT WINDOW HEAT COMPUTER IAW AMM 30-42-34. OPS CHK OF WINDOW HEAT CONTROL UNIT GOOD. FUNCTIONAL CHECK OF WINDOW HEAT COMPUTER S/N 4160031800258 WAS NO FAULT FOUND. UNIT TESTED IAW CMM 30-42-36.