As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB-OUT THRU 250 CAB PRESS ADVISORY V/S 2500/ MIN SWITCHED TO NR 1 REG NO HELP. NR 1 REG SYSTEM PAGE NORMAL BUT CABIN PRESSURE STILL CLIMBING AT 2500 FT/MIN. INITIATED EMERG DTCS ECAMS INCLUDED: VENT BLOWER LO FLOW, NR 1 CAB REG FAULT AND NR 1 CAB PRESS VALVES FAULT, NO HELP ON RED TABS, QRH, AIR TURN BACK TO VHHH MEL/CDL: 21-31-02-A. REMOVED AND REPLACED NR 1 CABIN PRESS CONTROLLER AND SYS NR 1 AFT PRESS REGULATING VLV PER MM.