What was found
PRESSURIZATION PROBLEM. DURING DESCENT AT FL 290, LOST PRESSURIZATION, (CABIN ALTITUDE 9300 FT). OXYGEN MASKS DID NOT DEPLOY. ACCOMPLISHED ECAM PROCEDURE, NEVER REGAINED CONTROL OF CABIN. DECLARED EMERGENCY, AND FLIGHT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS GROUNDED. MAINTENANCE ACCOMPLISHED SATISFACTORY CHECK OF CABIN PRESSURE CONTROLLER 1 & 2, NO FAULTS NOTED.