# SDR CA150120018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 15, 2015
- Submitted: March 12, 2015
- 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: Pwc PW127F
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Making Metal
- Location: Nr 2
- Stage of operation: CL
- How discovered: 9
- Nature of condition: R
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA150120018

## Discrepancy

(CAN) SHORTLY AFTER TAKE-OFF, WHILE GEARS WERE BEING RETRACTED, NR 2 ENGINE TORQUE WENT FROM 90 TO 70 PERCENT. APPROXIMATELY 5 SECONDS LATER, THE TORQUE DROPPED TO 40 PERCENT, THEN TO ZERO. FOLLOWED PROCEDURES AND SAFELY LANDED BACK AIRPORT OF ORIGIN. THE PRELIMINARY INSPECTIONS REVEALED EXTENSIVE DAMAGE TO THE NR 2 ENGINE POWER TURBINE. SOME ENGINE DEBRIS HAVE BEEN FOUND ON THE RUNWAY. PUNCTURES AND DENT HAVE BEEN REPORTED ON JET AND EXHAUST PIPES SKINS. THE RGB FILTER INDICATOR FOUND POPPED-OUT. THE ENGINE IS BEING INSPECTED AND POWER TURBINE DAMAGE WAS CONFIRMED AND METALLIC DEBRIS FOUND IN EXHAUST DUCT.

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