2024-08 · NASA ASRS report 2155168
A319 flight crew reported a malfunction of the automatic mode of the pressurization system; and elected to continue to the destination airport in manual mode.
CP2 was on the MEL and confirmed on status page prior to engine start. During climbout; we noticed our ears popping more than usual. We investigated the pressurization system and discovered the CP1 had also failed. Neither of us had seen or acknowledged a master caution or ECAM prior to this discovery. We leveled at 8000 feet. The cabin altitude had climbed to 8000'. The copilot ran the ECAM and was able control the outflow valve and bring the aircraft pressure down to sea level. We contacted Maintenance Control and dispatch. We discussed the situation with Maintenance Control that confirmed our actions and confirmed there was no reset procedure in the checklist. We discussed with dispatch the possibility of continuing to ZZZ at 8000' and the pressurization system in manual. We determined that given the short flight that even if we were to fly the entire filed route; we would land with more than an hour of fuel. We decided that given the fact that pressurization was under control and that the fuel cost was minimal and that this procedure didn't require landing at the nearest suitable that we would continue. We [requested priority handling] with ATC due to the loss of a critical system. We were given direct ZZZ. We landed uneventfully at ZZZ and taxied to the gate.
Before flight; the pilots acknowledged Cabin Pressure Controller (CPC) 2 deferral found in Maintenance Reporting Manual. After takeoff; FO noticed cabin pressure matched present altitude and saw that CPC 1 had failed. Because CPC 2 was deactivated; aircraft was not pressurizing. Climb was stopped at 8000 feet. QRH CAB PR SYS 1+2 FAULT procedure was followed. Coordination with dispatch and company resulted in a decision to continue to ZZZ at 8000 feet. An uneventful landing and taxi to gate was accomplished.
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Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.
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