# SDR SWAA022759

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 2002
- Submitted: December 3, 2002
- Operation: Air carrier
- Aircraft: [N399WN](https://openairdocs.org/aircraft/N399WN), registered now
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 27693
- Aircraft time: 26,800 hours, 23,424 cycles
- System (JASC): [2920 · Hydraulic System, Auxiliary](https://openairdocs.org/jasc/2920)
- Part: Hydraulic Line
- Part number: 65C268391134
- 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/SWAA022759

## Discrepancy

AIR TURNBACK, DURING CRUISE, NR 2 ENGINE HYDRAULIC PUMP LOW PRESS LIGHT ILLUMINATED, QUANTITY DECREASED TO 1/4.  REMOVED AND REPLACED B-SYSTEM HYDRAULIC LINE AT ACOUSTIC FILTER TO PRESS MODULE PER MM.

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