# SDR AUS20040149

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 2, 2004
- Submitted: June 4, 2004
- Operation: General aviation
- Make and model: Gulstm G73
- Engine: Pwa PT6A34
- Propeller: Hartzl HCB3TN3
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 99101371
- Part serial: 1052
- Condition: Failed
- Location: Hydraulic Sys
- Part time: 291 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AUS20040149

## Discrepancy

(AUS) RT HYDRAULIC PUMP FAILED. INVESTIGATION FOUND A FINE BROWN COATING OVER THE SURFACE OF THE PUMP.  SUSPECT PUMP OVERHEATED.

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