# SDR 96ZZZX6149

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 1, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N989HA
- Make and model: Dhav DHC8201
- Aircraft serial: 427
- System (JASC): [7712 · Engine BMEP/Torque Indicating](https://openairdocs.org/jasc/7712)
- Part: Tscu
- Part number: 30005000051
- Condition: Failed
- Location: Nr 2 Engine
- Part time: 1,761 hours
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX6149

## Discrepancy

FLT 3180, TPA TO PBI - AFTER TAKEOFF, POWER UPTRIM LIGHT FLICKERED ON, NR 1 TQ FLUXED PLUS OR MINUS 5 PERCENT, SECONDS LATER THE NR 2 PROP FEATHERED.  NR 2 TQ WAS HIGH FOR TWO SECONDS BEFORE POWER WAS REDUCED.  NR 2 ENGINE CONTINUED TO RUN WITH ALL OTHER INDICATIONS NORMAL.  THE AIRCRAFT RETURNED TO TPA AND LANDED WITHOUT INCIDENT.  REMOVED AND REPLACED THE NR 2 TORQUE SENSOR, NR 2 TORQUE SIGNAL CONDITIONING UNIT (TSCU), AND NR 2 PROP ASSEMBLY.  INTERROGATED TORQUE INDICATOR.  NO OVERTORQUE FAULTS FOUND.  REFERENCE:  OPERATOR CONTROL NRS:   HNAA9698974 AND NR 96ZZZX6150.

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