# SDR SWAA2018040320947

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 2, 2018
- Submitted: April 4, 2018
- Operation: Air carrier
- Aircraft: [N8609A](https://openairdocs.org/aircraft/N8609A), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36893
- Aircraft time: 18,756 hours, 8,053 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 849589
- Part serial: MX637800
- Condition: Faulty
- Location: Nr 1 Engine
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2018040320947

## Discrepancy

AIR TURNBACK, ON TAKEOFF BOTH NR 1 ENGINE AND NR 2 ELECTRIC HYDRAULIC LOW PRESSURE LIGHTS ILLUMINATED.  HYDRAULIC A QUANTITY DECREASED TO 67%.

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