As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF ROLL, ECAM MESSAGE FOR VENT SKIN VALVE FAULT. THE AUTO PRESSURIZATION FAILED & RETURNED TO DEPARTURE. FOLLOWED ECAM PROCEDURES TO SELECT OVERRIDE, BLOWER & EXTRACT FANS AND SELECTED MAIN CABIN PRESSURE. CABIN PRESSURE WAS 1750FT & CLIMBING AT 4000FT MSL. STABILIZED CABIN. FOUND SKIN AIR OUTLET VALVE MAIN FLAP OPEN. DEACTIVATED SKIN AIROUTLET VALVE IAW AMM 21-26-00.