# SDR 2000UALA00312

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 5, 2000
- Submitted: October 4, 2000
- Operation: Air carrier
- Aircraft: [N821UA](https://openairdocs.org/aircraft/N821UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 944
- Aircraft time: 5,353 hours, 1,883 cycles
- Engine: Iae V2522A5
- System (JASC): [2917 · Hydraulic Pressure Regulator, Main](https://openairdocs.org/jasc/2917)
- Part: Pressure Switch
- Part number: 501310000
- Condition: Leaking
- Location: Hyd System
- 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/2000UALA00312

## Discrepancy

GREEN HYDRAULIC SYSTEM LOSS IN CRUISE.  QUANTITY AND PRESSURE READING ZERO.  *S/D*  CHECKED NR 1 ENGINE FOR EXTERNAL HYDRAULIC LEAKS.  FOUND LOW PRESSURE SWITCH LOOSE AND LEAKING.  REPLACED SHREDDED O RING AND INSTALLED SWITCH WITH PROPER TORQUE.  SERVICED GREEN SYSTEM.  LEAK AND OPS CHECK GOOD.

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