What was found
EN ROUTE ATL-YYZ RECEIVED A LEFT WINDOW HEAT CAUTION MESSAGE, FLGIHT DIVERTED TO CVG. REPLACED THE LEFT WINDOW HEAT CONTROLLER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
EN ROUTE ATL-YYZ RECEIVED A LEFT WINDOW HEAT CAUTION MESSAGE, FLGIHT DIVERTED TO CVG. REPLACED THE LEFT WINDOW HEAT CONTROLLER.