As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF VENT SKIN VALVE FAULT ON ECAM, THE PROCEDURE WAS COMPLETED. PRESSURIZATION DIDN´T WORK AND CAB PR EXCESS CAB ALT ON ECAM. COCKPIT OXYGEN MASKS WERE USED. IN ACCORDANCE WITH AMM 35-12-41-100-802-A CLEANING OXYGEN MASKS WAS PERFORMED, AND PRESSURE OF BOTTLE IS SERVICEABLE. IN ACCORDANCE WITH AMM 21-26-53 PB 401 SKIN AIR OUTLET VALVE WAS REPLACED. OPERATIONAL TEST SATISFACTORY WITH PRESSURIZATION.