# SDR 2004UALA01140

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 18, 2004
- Submitted: November 23, 2004
- Operation: Air carrier
- Aircraft: [N813UA](https://openairdocs.org/aircraft/N813UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 858
- Aircraft time: 21,971 hours, 8,342 cycles
- Engine: Iae V2522A5
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Condition: Leaking
- Location: Yellow Hyd Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2004UALA01140

## Discrepancy

YELLOW SYSTEM LOW LEVEL ECAM MESSAGE.  CREW FOLLOWED ECAM, EDP SELECTED OFF. YELLOW SYSTEM PRESSURE ZERO, WITH QUANTITY IN AMBER ZONE. REPLACED O-RING ON YELLOW SYSTEM MANIFOLD.

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