# SDR 0202716304

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 2002
- Submitted: August 26, 2002
- Operation: Air carrier
- Aircraft: N664US
- Make and model: Boeing 747451
- Aircraft serial: 23819
- Aircraft time: 55,933 hours, 6,945 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 3508806
- Part serial: MX30867
- Condition: Failed
- Location: Nr 3 Engine
- Part time: 37,686 hours
- Stage of operation: CL
- How discovered: O
- Nature of condition: K
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/0202716304

## Discrepancy

DURING CLIMB, LOST HYDRAULIC FLUID FROM THE NR 3 HYDRAULIC SYSTEM.  TURNED NR 3 HYDRAULIC PUMPS OFF AND AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT.  REPLACED THE NR 3 ENGINE DRIVEN HYDRAULIC PUMP.  OPERATIONAL CHECK GOOD.

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