# SDR SWAA2015041638612

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2015
- Submitted: April 16, 2015
- Operation: Air carrier
- Aircraft: [N626SW](https://openairdocs.org/aircraft/N626SW), registered now
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 27702
- Aircraft time: 61,272 hours, 48,995 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 623337
- Part serial: MX334524
- Condition: Failed
- Location: Nr 1 Engine
- Stage of operation: UK
- 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/SWAA2015041638612

## Discrepancy

AIR TURN BACK, FLIGHT CONTROL LIGHT & NR 1 ENG HYD LOW PRESS LIGHT SYS A HYD QTY DECREASED.  FOUND A ENG PUMP FAILED.  R & R PUMP IAW AMM.

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