# SDR CA970722020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Make and model: Dhav DHC6300
- Engine: Pwa PT6A27
- Propeller: Hartzl HCB3TN3
- System (JASC): [6140 · Propeller Indication System](https://openairdocs.org/jasc/6140)
- Part: Switch
- Part number: KX5116
- Condition: Broken
- Location: Rt Beta
- Stage of operation: CL
- Nature of condition: R
- Precautionary procedure: A, E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA970722020

## Discrepancy

(CAN) AFTER TAKEOFF ENGINE LOST POWER, AND A LARGE THROTTLE STAGGER WAS NOTICED, ALONG WITH A SIGNIFICANT DIFFERENCE IN FUEL FLOW. PILOT SHUT OFF AUTOFATHER SYSTEM AND NOTICED THAT THE BLUE BETA SYSTEM LIGHT WAS ON WITH A LARGE INCREASE IN ENGINE TORQUE AND LOWER PROP SPEED. INSPECTION FOUND THAT THE BETA MICRO SWITCH HAD FAILED CLOSED.

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