# SDR CA070522004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2007
- Submitted: January 21, 2008
- Operation: General aviation
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft time: 1,493 hours
- Engine: Allsn 250C47B
- System (JASC): [6220 · Main Rotor Head](https://openairdocs.org/jasc/6220)
- Part: Bearing
- Part number: 407310101101
- Condition: Separated
- Location: Main Rotor
- Part time: 1,493 hours
- Component: Main Rotor Hub, Bell, 407010100
- 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/CA070522004

## Discrepancy

(CAN) COMPLETE FAILURE/SEPARATION OF SHEAR BEARING ELASTOMERIC LAMINATIONS (4 OF 4). FOUND AT INSPECTION. SHEAR BEARING P/N 407-310-100-115. S/N 8345, 8325, 8109, 8113. (TC NR 20070522004)

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