Dispatched with one pack inoperative; an A319 flight crew descended and diverted to a nearby airport...

Narrative:

During climb we got a cabin alt ECAM. Cabin was at 9;500 and climbing at a rate of 200 FPM. Leveled off at FL290 and coordinated a descent with ATC. Checked all valves were closed. Selected cabin controller to manual; no change. Switched back to auto to change controllers; still no change. Leveled at 10;000 ft and coordinated a diversion to the nearest suitable airport. The aircraft was dispatched with pack #2 on MEL. We then found that pack #1 had gone to low flow. We recycled pack #1 and it went to hi flow and the aircraft started to pressurize. At this point we concluded the safest course of action was to continue to divert.

Original NASA ASRS Text

Title: Dispatched with one pack inoperative; an A319 Flight Crew descended and diverted to a nearby airport when the other pack was unable to pressurize the aircraft.

Narrative: During climb we got a Cabin Alt ECAM. Cabin was at 9;500 and climbing at a rate of 200 FPM. Leveled off at FL290 and coordinated a descent with ATC. Checked all valves were closed. Selected cabin controller to manual; no change. Switched back to auto to change controllers; still no change. Leveled at 10;000 FT and coordinated a diversion to the nearest suitable airport. The aircraft was dispatched with pack #2 on MEL. We then found that Pack #1 had gone to low flow. We recycled Pack #1 and it went to hi flow and the aircraft started to pressurize. At this point we concluded the safest course of action was to continue to divert.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	905275
Time
Date	201008
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Aircraft 1
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Pressurization System
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

Dispatched with one pack inoperative; an A319 flight crew descended and diverted to a nearby airport when the other pack was unable to pressurize the aircraft.