# SDR CA130819004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2013
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Aerosp ATR42-500
- Registry model: [Aerosp ATR42-500](https://openairdocs.org/model/aerospatiale-alenia-atr42-500) (OpenAirDocs)
- Engine: Pwa PW127
- System (JASC): [6120 · Propeller Controlling System](https://openairdocs.org/jasc/6120)
- Part: Controller
- Condition: Malfunctioned
- Location: Propeller
- Stage of operation: CR
- How discovered: O
- Nature of condition: R
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA130819004

## Discrepancy

(CAN) DURING CRUISE, THE ENGINE NR 2 LOSS OF TORQUE AND NP, TORQUE BELOW 20 PERCENT AND NP AT 7 PERCENT,  THEN AUTOMATIC RELIGHT WITHIN 30 SECONDS.  TROUBLESHOOTING LED TO THE REPLACEMENT OF THE AUTOFEATHER UNIT, WHICH WILL BE SENT FOR INVESTIGATION.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.