# SDR UPS06548749

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2006
- Submitted: December 11, 2006
- Operation: Air carrier
- Aircraft: [N459UP](https://openairdocs.org/aircraft/N459UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25480
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Switch
- Condition: Failed
- Location: Lt Hyd Elec Pump
- Stage of operation: CL
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS06548749

## Discrepancy

ATB - EICAS DISPLAYED L HYD ELEC PUMP IN CLB, TROUBLESHOT TO LEFT PRESSURE SWITCH PER FIM.  REMOVED AND REPLACED LEFT HYDRAULIC PRESSURE SWITCH IN REFERENCE TO MM 29-11-18-4.  NO LEAK NOTED OK FOR SERVICE.

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