# SDR CA130918010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 13, 2013
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Dhav DHC7103
- Aircraft time: 41,829 hours
- Engine: Pwa PT6A50
- Propeller: Hamstd 24PF305
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Surges
- Location: Nr 4
- Part time: 30,530 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA130918010

## Discrepancy

(CAN) ON CLIMB THROUGH 15 000 FT NR 4 ENGINE BEGAN TO SURGE WITH ASSOCIATED FLUCTUATIONS IN TORQUE, ITT AND FUEL FLOW.  WHEN THE FLIGHT CREW CLOSED THE NR 4 AIRFRAME BLEED VALVE AND REDUCED POWER THE ENGINE STABILIZED.  NO FURTHER ISSUES WERE NOTED FOR THE REST OF THE FLIGHT.  THE NR 4 ENGINE WAS REPLACED.

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