# SDR 2004UALA00014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2004
- Submitted: January 27, 2004
- Operation: Air carrier
- Aircraft: [N401UA](https://openairdocs.org/aircraft/N401UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 435
- Aircraft time: 33,583 hours, 12,286 cycles
- Engine: Iae V2527A5
- Engine time: 6,394 hours
- System (JASC): [2200 · Auto Flight System](https://openairdocs.org/jasc/2200)
- Part: Damper
- Part number: SC47003
- Part serial: 1890
- Condition: Leaking
- Location: Nr 1 Yaw
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2004UALA00014

## Discrepancy

AIRCRAFT LANDED UNDER AMBER ALERT DUE TO FAILURE OF GREEN HYDRAULIC SYSTEM.  YAW DAMPER NR 1 WAS FOUND LEAKING. SUBSEQUENT REPLACEMENT WITH NEW YAW DAMPER AND OPS CHECK WERE ACCOMPLISHED WITH NO FURTHER ANOMALY.

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