# SDR SIMA20210301005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 1, 2021
- Submitted: March 5, 2021
- Operation: Air carrier
- Aircraft: [N250NN](https://openairdocs.org/aircraft/N250NN), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000635
- Aircraft time: 10,240 hours, 6,663 cycles
- System (JASC): [3244 · Tire](https://openairdocs.org/jasc/3244)
- Part: Tire
- Condition: Out Of Balance
- Location: Nose Landing Gr
- Stage of operation: TO
- How discovered: V
- Nature of condition: E
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20210301005

## Discrepancy

REJECTED TAKEOFF DUE TOO EXCESSIVE VIBERATION (NOSE WHEEL SHIMMY).  VIBERATION INCREASED WITH SPEED ALONE WITH SEVERITY.  C/A-FOUND NLG TIRES OUT OF ROUND.  RAR NLG TIRES IAW ENVOY WORK CARD 32-49-01-000-801-A.  AIRCRAFT OK FOR SERVICE.

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