# SDR CA140119002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 4, 2014
- Submitted: September 14, 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: Pwa PW127
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Power Loss
- Location: Right
- Stage of operation: CR
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA140119002

## Discrepancy

(CAN) DURING A ROUTINE FLIGHT THE PILOT REPORTED A TORQUE DROP TWICE ON RT ENGINE. THE FIRST WAS A SUDDEN TORQUE DROP FROM 90 PERCENT TO 0 PERCENT. THE PILOT MANAGED TO BRING THE TORQUE BACK TO 90 PERCENT FOR A WHILE BEFORE IT DROPPED AGAIN TO 20 PERCENT IN 2 SECONDS. THE TORQUE WAS BROUGHT BACK UP AGAIN TO 90 PERCENT WHERE THEY ELECTED TO GO BACK TO AIRPORT OF ORIGIN WHERE THEY SAFELY LANDED WITH THE 2 ENGINES RUNNING.  TROUBLESHOOTING ONGOING.

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