# SDR USAA2011071800008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 2011
- Submitted: July 18, 2011
- Operation: Air carrier
- Aircraft: [N757UW](https://openairdocs.org/aircraft/N757UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1342
- Aircraft time: 25,272 hours, 19,393 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Part number: NAS161212
- Condition: Deteriorated
- Location: Hydraulic Sys
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2011071800008

## Discrepancy

IN FLIGHT YELLOW HYDRAULIC SYSTEM FAILED.  EMERGENCY DECLARED.  FOUND O-RING DETERIORATED ON FITTING 3701GM.  REFERENCE IPC 29-13-03-10N ITEM 150.  REPLACED O-RING, SYSTEM OPS CHECKED GOOD.

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