As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF VENT AVIONCS SYS FAULT ECAM ACTIONS PERFORMED NO HELP AND OUTLET VALVE REMAINS OPEN, AIRPLANE DEPRESURIZED. IAW AMM 21-26-34 PB 401. THE AVIONICS EQUIPMENT VENTILATION COMPUTER WAS REPLACED IAW AMM 21-26-53, PB 401 THE SKIN AIR OUTLET VALVE WAS REPLACED TEST SATISFACTORY.