# SDR UIEA2013091700502

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2013
- Submitted: September 17, 2013
- Operation: Air carrier
- Aircraft: [N640GT](https://openairdocs.org/aircraft/N640GT), registered now
- Make and model: Boeing 767-3S1
- Registry model: [Boeing 767-3S1](https://openairdocs.org/model/boeing-767-3s1) (OpenAirDocs)
- Aircraft serial: 25221
- Aircraft time: 72,724 hours, 15,311 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pressure Switch
- Condition: Failed
- Location: Hyd Pump
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2013091700502

## Discrepancy

AFTER ENGINE SHUTDOWN, LT SYS DEMAND PUMP DID NOT WORK IN AUTO.  TROUBLESHOT IAW WPM 29-11-12,  PG 1,2,3.   FOUND S26 EDP PRESSURE SWITCH FAULTY.  R & R PRESSURE SWITCH, OPS CHECKED NORMAL IAW AMM 29-11-18-401, LEAK CHECKED OK.

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