# SDR CA970722007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 15, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Dhav DHC6300
- Engine: Pwa PT6A27
- Propeller: Hartzl HCB3TN3
- System (JASC): [6120 · Propeller Controlling System](https://openairdocs.org/jasc/6120)
- Part: Pressure Switch
- Part number: 8190026
- Condition: Failed
- Location: Rt Engine
- Stage of operation: TX
- Nature of condition: O
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA970722007

## Discrepancy

(CAN) DURING PREFLIGHT RUN UP THE CREW COULD NOT ARM THE AUTOFEATHER CIRCUIT. THE SYSTEM WAS TURNED OFF. THE PRESSURE SWITCH ON THE RIGHT HAND ENGINE HAD FAILED.

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