# SDR 20000718SH003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2000
- Submitted: July 18, 2000
- Operation: General aviation
- Aircraft: [N917AL](https://openairdocs.org/aircraft/N917AL), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53381
- System (JASC): [6420 · Tail Rotor Head](https://openairdocs.org/jasc/6420)
- Part: Bearing
- Part number: 406312100101
- Condition: Worn
- Location: T/R Yoke
- Part time: 644 hours
- Component: Hub Assy, Bell
- Component part number: 407012101107
- 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/20000718SH003

## Discrepancy

DURING DAILY SERVICE CHECK, FOUND INBOARD FEATHER BEARING WEAR, CAUSING THE OUTER RACE OF FEATHER BEARING TO SHIFT IN YOKE CAUSING BORE TO WEAR BEYOND LIMITS.  (X)

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