# SDR AC2R2018042004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 31, 2015
- Submitted: April 20, 2018
- Operation: General aviation
- Aircraft: [N639MM](https://openairdocs.org/aircraft/N639MM), registered now
- Make and model: Agusta AW139
- Registry model: [Agusta AW139](https://openairdocs.org/model/agustawestland-philadelphia-aw139) (OpenAirDocs)
- Aircraft serial: 41216
- Aircraft time: 5,230 hours
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Oil Cooler
- Part number: 3G6320V03853
- Part serial: 141600671
- Condition: Vibration
- Stage of operation: IN
- How discovered: 9
- Nature of condition: E
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AC2R2018042004

## Discrepancy

OIL COOLER FAN HIGH VIBRATION READINGS.

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