# SDR IPXA1567754

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2011
- Submitted: July 8, 2011
- Operation: Air carrier
- Aircraft: [N421UP](https://openairdocs.org/aircraft/N421UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25281
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Pressure Switch
- Part number: 2110223326
- Condition: Inoperative
- Location: Hyd System
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA1567754

## Discrepancy

DIVERSION - LT HYD ELECT PUMP MESSAGE AND LT ELECT PRESSURE SWITCH LIGHT ILLUMINATED ON OVERHEAD PANEL.  R & R LT ELEC PUMP PRESSURE SWITCH IAW MM 29-11-18-4. GROUND CHECKS NORMAL. OK FOR SERVICE.

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