# SDR SWAA117244

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 11, 2011
- Submitted: October 25, 2011
- Operation: Air carrier
- Aircraft: N419WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29824
- Aircraft time: 35,027 hours, 20,166 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Module
- Part number: 651782121
- Part serial: 6161
- Condition: Faulty
- Location: Hydraulic Sys
- Stage of operation: UK
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA117244

## Discrepancy

AIR TURNBACK - IN FLIGHT NR 1 ENGINE "A" HYD LIGHT "LOW PRESSURE" LIGHT ILLUMINATED.  REMOVED AND REPLACED A-SYS HYD MODULE PER MM.

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