# SDR SWAA114181

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 6, 2011
- Submitted: June 8, 2011
- Operation: Air carrier
- Aircraft: [N339SW](https://openairdocs.org/aircraft/N339SW), registered now
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 24090
- Aircraft time: 74,115 hours, 65,851 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 623337
- Part serial: MX348742
- Condition: Faulty
- Location: Nr 2 Engine
- 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/SWAA114181

## Discrepancy

AIR TURNBACK/DECLARED EMERGENCY.  NR 2 ENGINE DRIVEN LOW HYDRAULIC PRESSURE LIGHT FLICKERING WITH ASSOCIATED FLUCTUATING PRESSURE INDICATION.  REMOVED AND REPLACED NR 2 ENGINE DRIVEN PUMP PER MM.

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