# SDR 98ZZZM786

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 3, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N844JS](https://openairdocs.org/aircraft/N844JS), registered now
- Make and model: Bag JETSTM3101
- Aircraft serial: 760
- System (JASC): [7712 · Engine BMEP/Torque Indicating](https://openairdocs.org/jasc/7712)
- Part: Signal Cond
- Part number: 31024766
- Condition: Failed
- Location: Rt Wing
- Stage of operation: CL
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZM786

## Discrepancy

AIRCRAFT RETURNED TO FIELD, DUE TO ERRATIC TORQUE AND EGT FLUCTUATION ON LEFT ENGINE.  THE BRIDGES WERE SWAPPED ON THE TORQUE SIGNAL AND CONDITIONER.  THE SIGNAL CONDITIONER WAS ADJUSTED.  A FUNCTIONAL CHECK OF THE SYSTEM WAS PERFORMED WITH ALL INDICATIONS NORMAL.  THE TORQUE SIGNAL CONDITIONER WAS REPLACED AFTER ARRIVING AT MAINTENANCE BASE.  THE NEW UNIT WAS ADJUSTED.  A FUNCTIONAL CHECK WAS PERFORMED WITH ALL INDICATIONS NORMAL.  (M)

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