What was found
DURING CRUISE, CABIN PRESSURE ECAM MESSAGE ILLUMINATED AT 22000 FEET, CABIN PRESSURE STARTED TO CLIMB, REQUESTED A DESCENT TO 16000 FEET. CABIN CONTINUED TO CLIMB TO ALMOST 11000, DECLARED EMERGENCY DECSCENT TO 10000 FEET. CABIN CAME DOWN TO 3500 FEET AND FLIGHT CONTINUED TO DESTINATION. DECLARED EMERGENCY AND LANDED SAFELY WITHOUT FURTHER INCIDENT. AIRCRAFT WAS GROUNDED. MAINTENANCE REPLACED THE NR 2 CONDENSER DUCT IAW AMM 21-52-41, REPLACED THE NR 2 PACK CONDENSER SENSE LINE PER AMM 21-52-32, AND REPLACED ANTI ICE SENSE LINE TO CONDENSER PER AMM 21-52-41, AND PERFORMED SATISFACTORY OPERATIONAL CHECK.