# SDR 97UAL900507

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N429UA](https://openairdocs.org/aircraft/N429UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 539
- Engine: Iae V2527A5
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Skin Valve
- Condition: Stuck Open
- Location: Fuselage
- Part time: 7,069 hours
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97UAL900507

## Discrepancy

CREW REPORTED UNABLE TO PRESSURIZE AIRCRAFT, SKIN OUTLET VALVE SHOWS FULL OPEN.  *S/D*  AVIONICS EQUIPMENT VENTILATION COMPUTER SKIN AIR OUTLET VALVE FAILED TO CLOSE AT TAKEOFF.  DIFFERENTIAL PRESSURE COLLAPSED DUCTING.  DUCTING AND VALVE REPLACED.

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