# SDR SIMA200727703

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2007
- Submitted: October 4, 2007
- Operation: Air carrier
- Aircraft: [N612AE](https://openairdocs.org/aircraft/N612AE), registered now
- Make and model: Emb EMB-145
- Registry model: [EMB EMB-145](https://openairdocs.org/model/embraer-emb-145) (OpenAirDocs)
- Aircraft serial: 145079
- Aircraft time: 20,383 hours, 19,911 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Bushing
- Part number: E3548207
- Condition: Unknown
- Location: Ram Air Valve
- Stage of operation: CL
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA200727703

## Discrepancy

UNUSUAL AIRFRAME VIBRATION IN FLIGHT ALONG THE LONGITUDINAL AXIS.  REMOVED AND REPLACED RIGHT RAM AIR VALVE SHAFT BUSHINGS IAW EMB CMM 21-25-01.  AIRCRAFT RETURNED TO SERVICE.

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