# SDR 9716656625

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N625US
- Make and model: Boeing 747251B
- Aircraft serial: 21707
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 3508806
- Condition: Leaking
- Location: Nr 4 Hyd Syst
- Part time: 30,538 hours
- Stage of operation: CR
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9716656625

## Discrepancy

DURING CRUISE, THE NR 4 HYDRAULIC SYSTEM INDICATED A LOSS OF FLUID AND PRESSURE.  AIRCRAFT DIVERTED TO MSP AND LANDED WITHOUT INCIDENT.  REPLACED THE NR 4 ENGINE DRIVEN PUMP, OPERATIONAL CHECK GOOD.

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