As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL 330 CABIN V/S CONSTANTLY AT 150 CLIMB, FWD OUTFLOW VALVE SHOWED NEARLY OPEN SYS 1 REG FAULTED. SYS 2 TOOK OVER AS NECESSARY BUT CABIN V/S INCREASED TO 200FPM, THEN SELECTED MANUAL BUT OUTFLOW VALVE WOULD NOT CLOSE. ELECTED TO MAKE PRECAUTIONARY LANDING IN PHX AS UNABLE TO MAINTAIN CABIN ALT BELOW 10,000FT. FOLLOWED ALL ECAM AND QRH PROCEDURE ACN RELEASED FOR SERVICE PER MEL/CDL: 21-31-02-A CATEGORY: C EXPIRATION: 05NOV07 , FLT CONTINUED TO MEM AND IS INWORK: REMOVED AND REPLACED NR 1 CABIN CONTROLLER AND AFT OUTFLOW VALVE (21-30/9624). TEST SYSTEM 21-31-00-5.