# SDR SIMA200126203

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 19, 2001
- Submitted: April 16, 2002
- Operation: Air carrier
- Aircraft: [N538AT](https://openairdocs.org/aircraft/N538AT), registered now
- Make and model: Aerosp ATR 72-212A
- Registry model: [Aerosp ATR 72-212A](https://openairdocs.org/model/aerospatiale-atr-72-212a) (OpenAirDocs)
- Aircraft serial: 538
- System (JASC): [7712 · Engine BMEP/Torque Indicating](https://openairdocs.org/jasc/7712)
- Part: Control Unit
- Part number: 20110800001
- Part serial: 0328
- Condition: Erratic
- Location: Nr 1 Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA200126203

## Discrepancy

DFW - FLT 3607 - NR 1 ENGINE TORQUE AND NR 2 ENGINE PROPELLER SPEED WAS ERRATTIC DURING CLIMB-OUT.  CREW RETURNED TO FIELD.  REMOVED AND REPLACED THE PEC INTERFACE UNIT IAW ATR 72 AMM.  OPERATIONALLY CHECKED GOOD.  (M)

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