# SDR CA150811009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2015
- Submitted: April 22, 2016
- Operation: General aviation
- Make and model: Bombdr DHC8400
- Aircraft time: 9,358 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: 9,880 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA150811009

## Discrepancy

(CAN) CREW RECEIVED A NO. 2 ENGINE DRIVEN HYDRAULIC PUMP CAUTION LIGHT. CREW ACTIONED THEIR QRH, PRESSURE AND QUANTITY REMAINED NORMAL. FLIGHT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED A FAILED NO. 2 ENGINE DRIVEN HYDRAULIC PUMP. DURING ENGINE RUN THE NO. 2 HYDRAULIC PRESSURE FLUCTUATED AND CAUTION LIGHT CAME ON. FURTHER TROUBLESHOOTING DISCOVERED SYSTEM METAL CONTAMINATION. A SECOND NO. 2 EDP PUMP WAS REPLACED AND VARIOUS OTHER COMPONENTS HAVE ALSO BEEN REPLACED Ï¿½ (POWER TRANSFER UNIT, R/H HEAT EXCHANGER BYPASS VALVE) EXTENSIVE TROUBLESHOOTING BEING COMPLETED. ALL AFFECTED SYSTEMS FILTERS OR SCREENS ARE BEING REPLACED OR CLEANED AND A COMPLETE SYSTEM FLUSH TO BE COMPLETED.

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