# SDR CA160119018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 30, 2015
- Submitted: April 22, 2016
- Operation: General aviation
- Make and model: Dhav DHC8301
- Engine: Pwa PW123
- System (JASC): [6123 · Propeller Feathering/Reversing](https://openairdocs.org/jasc/6123)
- Part: Autofeather Sys
- Condition: Malfunctioned
- Stage of operation: TO
- How discovered: O
- Nature of condition: F
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA160119018

## Discrepancy

(CAN) THERE WAS AN ABORTED TAKEOFF DUE TO A NR 1 ENGINE AUTO-FEATHER FAILED TO ARM. THE HIGH PRESSURE COMPRESSOR SPEED DROPPED BUT THE PROPELLER DID NOT FEATHER. DURING TROUBLESHOOTING, THE AUTO-FEATHER DID NOT ARM. THE NR 1 ENGINE TORQUE SIGNAL CONDITIONER UNIT WAS REPLACED BEFORE THE AIRCRAFT WAS RETURNED TO SERVICE.

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