# SDR SIMA20201002004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 2020
- Submitted: October 6, 2020
- Operation: Air carrier
- Aircraft: [N664MS](https://openairdocs.org/aircraft/N664MS), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145779
- Aircraft time: 40,336 hours, 35,196 cycles
- Engine: Rroyce AE3007A1
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Warning Message
- Condition: False Activation
- Location: Vibra Sensor
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20201002004

## Discrepancy

WHEN N1 IN NR 1 ENGINE INCREASED OVER 75% IN CRUISE, 1 HP ENTERS AMBER RANGE.  IN CLIMB ENTERS AMBER FOR A FEW SECONDS, GOES BACK IN GREEN AND BACK TO AMBER.  MECH ENGINE PROB, NO EMERGENCY DECLARED.  RESCUE FLT 9860 SENT TO PROTECT "TRANSFERRED TO NRWC 664-CMH-04960"-C/A-SEE NRWC NR 664-CMH-04960 FOR CORRECTIVE ACTION TAKEN.  R & R LT ENGINE COMPRESSOR VIB SENSOR, IAW RR MM 77-41-10.

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