# SDR R61A2018081080851

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 8, 2018
- Submitted: August 10, 2018
- Operation: Air carrier
- Aircraft: [N208JQ](https://openairdocs.org/aircraft/N208JQ), 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: 17000257
- Aircraft time: 22,401 hours, 15,706 cycles
- Engine: Ge CF348E5
- Engine time: 26,603 hours, 19,873 cycles
- System (JASC): [7732 · Engine Vibration Analyzer](https://openairdocs.org/jasc/7732)
- Part: Connector
- Condition: Dirty
- Location: Nr 2 Accerometer
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/R61A2018081080851

## Discrepancy

NR 2 ENGINE LP VIBRATION AT 4.0, DURING CRUISE,  BUT ONLY FOR 5 SECONDS. THIS HAPPENED SEVERAL TIMES WHILE AT CRUISE.  DURING DESCENT, VIBRATION WENT TO 4 WITH DESCENT POWER.  AT 8,000 FEET, NR 2 ENGINE LP VIBRATION WHEN TO 4.1 AND PEAKED AT 4.4 BY THE TIME  THE ENGINE WAS SHUTDOWN.  DECLARED EMERGENCY,  LANDED WITHOUT INCIDENT. INSPECTED THE NR 2 ENGINE, DISCOVERED AFT ACCELEROMETER DIRTY. CLEANED THE CONNECTOR PLUG IAW MM 77-00-00.

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