# SDR SWAA2023092000993

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2023
- Submitted: September 20, 2023
- Operation: Air carrier
- Aircraft: [N959WN](https://openairdocs.org/aircraft/N959WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36674
- Aircraft time: 39,256 hours, 24,015 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hydraulic System
- Part number: UNKNOWN
- Condition: Low
- Location: Zn 100 Fus Lower
- Stage of operation: UK
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2023092000993

## Discrepancy

OTS - B HYDRO LOW PSI AND LOW QUAN - ATB_<UPON FURTHER INSPECTION FOUND B SYSTEM RUDDER PRESSURE TUBE ASSY LEAKING REMOVED AND REPLACED B SYSTEM PRESSURE TUBE ASSY PER AMM 20-50-11. REPLACED GARLOCK SEAL ON #2 ENGINE EDP._ED; OVERWEIGHT LEAK AT THE TAIL AREA

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