# SDR 2010FA0001235

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2010
- Submitted: December 8, 2010
- Operation: Air carrier
- Aircraft: [N7160V](https://openairdocs.org/aircraft/N7160V), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53013
- Aircraft time: 4,124 hours, 6,409 cycles
- Engine: Allsn 250C47B
- Engine time: 3,705 hours
- System (JASC): [6220 · Main Rotor Head](https://openairdocs.org/jasc/6220)
- Part: Bearing
- Part number: 407310102101
- Part serial: 4EACH
- Condition: Worn
- Location: M/R Head
- Part time: 744 hours
- Component: Hub Assy
- Component part number: 407010100103
- Stage of operation: CR
- 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/2010FA0001235

## Discrepancy

PILOT REPORTED M/R VIBRATION. FOUND BEARING WORN IN MAIN ROTOR HEAD.

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