# SDR AC2R2016120501

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 5, 2016
- Submitted: December 5, 2016
- Operation: Air carrier
- Aircraft: [N639GG](https://openairdocs.org/aircraft/N639GG), registered now
- Make and model: Agusta AW139
- Registry model: [Agusta AW139](https://openairdocs.org/model/agustawestland-philadelphia-aw139) (OpenAirDocs)
- Aircraft serial: 41308
- Aircraft time: 3,562 hours
- System (JASC): [6322 · Rotorcraft Cooling Fan System](https://openairdocs.org/jasc/6322)
- Part: Bearing
- Condition: Rough
- Location: Oil Cooling Fan
- Part time: 4,712 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AC2R2016120501

## Discrepancy

REMOVED OIL COOLER FAN FOR OVERHAUL.  ROTATED FAN BY HAND.  FOUND BEARING TO BE ROUGH.

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