As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT, CREW REPORTED VENT SKIN ANNOUNCED ON ECAM. ACFT WOULD NOT PRESSURIZE. AFTER PERFORMING ECAM ACTIONS, FLIGHT DIVERTED AND LANDED WITHOUT INCIDENT. MX R & R SKIN AIR OUTLET VALVE IAW AMM 21-26-53. OPS CHECKED OK IAW AMM 21-26-00-710-001A.