What was found
(AIRCRAFT GROUNDED) (EMERGENCY DECLARED) EXCESSIVE CABIN ALTITUDE ECAM / REMOVED AND REPLACED CABIN PRESSURE CONTROLLER CPC 1 AND CPC 2 IAW AMM 21-31-34-000-001-A AND 21-31-34-400-001-A. OP TEST CHECKED GOOD. REMOVED AND REPLACED BOTH AFT GALLEY SAFETY VALVE REF 21-31-52-000-001-A AND 21-31-52-400-001-A. OPS CHECK GOOD. REPLACED 02 GENERATOR CONTAINER ASSY FOR 12DEF ON LOGPAGE 1984723 AND 32DEF ON LOGPAGE 1984708 W/REF TO AMM 35-21-41-400-001-A. REMOVED AND REPLACED OUTFLOW VALVE IAW AMM 21-31-51-400-001-A. C/W OPERATIONAL TEST OF THE PRESSURE CONTROL AND MONITORING SYSTEM IAW AMM 21-31-00-710-002-A. OP'S CHECKS GOOD NO FAULTS NOTED."