What was found
EN ROUTE PIT-DEN, WHILE IN CRUISE FLIGHT, AT FL350, ECAM MESSAGE 'L WING LEAK' CAME ON, FOLLOWED BY A LOS OF CABIN PRESSURE. A RAPID DESCENT WAS MADE. THE FLIGHT DIVERTED TO ORD AND LANDED WITHOUT FURTHER INCIDENT. AIRCRAFT WAS FERRIED TO PIT FOR MAINTENANCE. A LEFT ENGINE HIGH PRESSURE VALVE WAS REPLACED FOR T/S PURPOSES. A LEFT ENGINE PNEUMATIC CONTROL THERMOSTAT WAS REPLACED TO FIX THE PROBLEM. (M)