What was found
DURING CLIMBOUT, CABIN PRESSURE EXCEEDED 10K FT SWITCH TO MANUAL CABIN CONTROL. BUT STILL UNABLE TO KEEP BELOW 10K FT, PERFORMED ECAM AND CHECKLIST ITEMS. NOTE ON ECAM PRESS PAGE NOTICED FWD AND AFT NUMBER TWO VALVE OPEN REGARDLESS OF MODE. CONFIRMED INOP DEFERRED MEL 21-44 CAT C C/N 0017036. *S/D* REMOVED NR 2 SYS AFT CABIN PRESSURE OUT FLOW VALVE 40HM AS PER M/M 21-31-12. REMOVED AND REPLACED NR 2 SYS FWD CABIN PRESSURE OUTFLOW VALVE PER M/M 21-31-12. OPERATIONAL TEST SATISFACTORY, CLEARED DMI.