# SDR UALA2013062404352

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 21, 2013
- Submitted: July 26, 2013
- Operation: Air carrier
- Aircraft: [N217UA](https://openairdocs.org/aircraft/N217UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30550
- Aircraft time: 54,301 hours, 6,666 cycles
- Engine: Pwa PW4090
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Switch
- Condition: Failed
- Location: Outflow Valve
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013062404352

## Discrepancy

AFT AUTO CONTROL ON AFT OUTFLOW VALVE FAILED.   REPLACED AFT OUTFLOW VALVE SWITCH ACOMPLISHED MAT AND MANUAL TEST, TEST PASSED.

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