As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: VENT AVIONICS SYSTEM FAULT. PERFORMED ECAM ACTIONS WITH QRH FOLLOW-UP. BOTH VENTILATION BLOWER AND EXTRACT FANS OVERRIDE. RETURNED TO BASE AFTER PASSING 14000 MSL. NO EMERGENCY DECLARED LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED SKIN AIR OUTLET-VALVE IAW AMM 21-26-53.