A319
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Training / Qualification
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Took Evasive Action; General Maintenance Action
Aircraft
This is a follow up to [an ASRS Report] already filed for this flight. Maintenance found Pack 1 flow control valve failed. Maintenance replaced it with contract Maintenance. Part was flown down. After; Captain showed me a printed message. Indicating Pack 1 Flow Control Valve failed. However the pack was operating normally. But Pack 2 was still on MEL. I think the printed report was telling us Pack 2 was inoperative. But it printed up as Pack 1 also; as was indicated in previous ASAP. When our Pack 1 failed we received no warning. No ECAM (Electronic Centralized Aircraft Monitor). Nothing. Also. No bells whistles. No alerts. Nothing until I saw cabin altitude at 13000 ft. Then I immediately descended. Pack 1 operated normally during the flight when Maintenance replaced the p1 flow control valve. Possible wiring ECAM pack lead error. Wired backwards.
A319 First Officer reported air conditioning pack failure inflight.