# SDR DHL2004809007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 21, 2004
- Submitted: September 21, 2004
- Operation: Air carrier
- Aircraft: N809DH
- Make and model: Doug DC-8-73F
- Registry model: [Doug DC-8-73F](https://openairdocs.org/model/douglas-dc-8-73f) (OpenAirDocs)
- Aircraft serial: 46047
- System (JASC): [2923 · Hydraulic Pump, Auxiliary](https://openairdocs.org/jasc/2923)
- Part: Pump
- Part number: 57155A
- Part serial: XC734
- Condition: Failed
- Location: Aux Hyd System
- Stage of operation: IN
- How discovered: V
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DHL2004809007

## Discrepancy

HYD AUX PUMP QUIT DURING PREFLIGHT VAPOR AND SMOKE IN WHEEL WELL.  REPLACED AUX HYD PUMP ASSY AS PER MM 29-20-2.

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