As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATB, AIRCRAFT UNABLE TO PRESSURIZE. ACCOMPLISHED BY VENT AVNCS SYS FAULT ECAM. ECAM ACTIONS COMPLETE HOWEVER STILL UNABLE TO PRESSURIZE. GROUNDED - YES. VERIFIED SKIN AIR OUTLET VALVE WAS SLIGHTLY OPEN. REAPPLIED MEL 21-26-04. VERIFIED MAIN FLAP CLOSED AND INTERNAL FLAP OPEN. PERFORMED PRESSURIZATION CHK UP TO 7000 PER AMM 05-53-00-780-002A. OPS CHK GOOD. A/C GOOD FOR SVC.