# SDR CA051223008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 30, 2005
- Submitted: June 6, 2006
- Operation: General aviation
- Make and model: Aerosp ATR 72-212A
- Registry model: [Aerosp ATR 72-212A](https://openairdocs.org/model/aerospatiale-atr-72-212a) (OpenAirDocs)
- Engine: Pwa PW127
- System (JASC): [6123 · Propeller Feathering/Reversing](https://openairdocs.org/jasc/6123)
- Part: Circuit Board
- Condition: Cracked
- Location: Autofeather
- Component: Autofeather
- Component part number: 30048000018
- Stage of operation: CL
- How discovered: O
- Nature of condition: R
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA051223008

## Discrepancy

DURING CLIMB, THE ENGINE EXPERIENCED UNCOMMANDED TORQUE FLUCTUATIONS AND THE ENGINE WAS SHUT DOWN IN FLIGHT.  SUBSEQUENT INSPECTION REVEALED AN INTERMITTENTLY FAULTY AUTOFEATHER UNIT DUE TO A CRACKED INTERNAL CIRCUIT BOARD.

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