# SDR CA141202026

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 30, 2014
- Submitted: March 12, 2015
- Operation: General aviation
- Make and model: Bombdr DHC8400
- Aircraft time: 9,769 hours
- Engine: Pwc PW150A
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 6617304
- Condition: Failed
- Location: Hydraulic Sys
- Part time: 9,451 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA141202026

## Discrepancy

(CAN) IN CRUISE FLIGHT THE NR 2 HYD PUMP CAUTION LIGHT ILLUMINATED FOLLOWED BY THE NR 2 HYD ISO VALVE C/L, THE RT HYD QTY WAS OBSERVED TO BE DEPLETED.  AFTER AN ALTERNATE GEAR EXTENSION THE ACFT HAD AN UNEVENTFUL LANDING.  MAINTENANCE INVESTIGATION FOUND THE RT HYDRAULIC PUMP WITH HOLES IN THE BODY WHICH APPEAR TO BE CAUSED BY INTERNAL BREAKUP OF THE PUMP.  THE CASE DRAIN AND PRESSURE FILTERS WERE HEAVILY CONTAMINATED WITH METAL AND WERE IN BY-PASS.  DUE TO METAL CONTAMINATION THE PTU AND ALL SYSTEM FILTERS WERE REPLACED AND THE HYDRAULIC SYS WAS FLUSHED. THE EDP WAS REPLACED.

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