# SDR 0400629855

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 26, 2004
- Submitted: April 29, 2004
- Operation: Air carrier
- Aircraft: N764NC
- Make and model: Doug DC-9-51
- Registry model: [Doug DC-9-51](https://openairdocs.org/model/mcdonnell-douglas-dc-9-51) (OpenAirDocs)
- Aircraft serial: 47717
- Aircraft time: 65,414 hours, 66,474 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: AS19593C
- Part serial: 21710
- Condition: Failed
- Location: Rt Hyd System
- Stage of operation: LD
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/0400629855

## Discrepancy

PILOT REPORTED THE LOSS OF HYDRAULIC FLUID FROM THE RIGHT HYDRAULIC SYSTEM. LANDING WAS WITHOUT INCIDENT AND MAINTENANCE FOUND THE ELECTRICAL AUXILIARY PUMP LEAKING FROM A SPLIT DRAIN LINE. THE ELECTRIC AUXILIARY PUMP AND THE RIGHT ENGINE DRIVEN PUMP WERE REPLACED, THE CASE DRAIN FILTER WAS CHECKED, AND A FUNCTIONAL LEAK CHECK WAS ACCOMPLISHED. AIRCRAFT RETURNED TO SERVICE.

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