# SDR UALA2012071903924

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 19, 2012
- Submitted: August 24, 2012
- Operation: Air carrier
- Aircraft: N421UA
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 500
- Aircraft time: 61,336 hours, 22,905 cycles
- Engine: Iae V2527A5
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 2079102AB
- Part serial: 132
- Condition: Failed
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012071903924

## Discrepancy

RAPID CABIN DEPRESS AT 7000 FT, OUTFLOW VALVE WENT FULL OPEN.  REPLACED CABIN PRESSURE CONTROLLER NR 1 PER MM.  SYSTEM OPS NORMAL.  NO FAULTS FOUND.

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