# SDR CA121105017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2012
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Aerosp ATR 42-300
- Registry model: [Aerosp ATR 42-300](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-300) (OpenAirDocs)
- Engine: Pwa PW120
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Overtorqued
- Location: Nr 1
- Stage of operation: CL
- How discovered: O
- Nature of condition: E
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA121105017

## Discrepancy

(CAN) DURING CLIMB , BETWEEN FL50 AND FL60, THE NR 1 ENGINE EXPERIENCED AN OVERTORQUE FOLLOWED BY VIBRATIONS.  THE CREW DECIDED TO SHUT THE ENGINE DOWN AND DIVERTED AND LANDED SAFELY SINGLE ENGINE. TROUBLESHOOTING IS ON-GOING

---
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.