# SDR UALA2012011200258

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2012
- Submitted: January 13, 2012
- Operation: Air carrier
- Aircraft: [N472UA](https://openairdocs.org/aircraft/N472UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1435
- Aircraft time: 35,648 hours, 14,600 cycles
- Engine: Iae V2527A5
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Condition: Malfunctioned
- Location: Ac Pack
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012011200258

## Discrepancy

GROUND RETURN AND CANCELLATION DUE TO INOPERATIVE PACK.  PACK 1 FAULT LIGHT INOP - AIR AIR.  PROG TEXT:  - ITEM ROLLED FORWARD.  NR 1 PACK FLOW CONTROL VALVE REPLACED AND REPLACED SOLENOIDS 7170HM1, 10HA1.  SWAPPED BOTH SDACS, PERFORMED CATIII CHECK.  ACFT PACK SYSTEM OPS NORMALLY.

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