# SDR CYX2001F00000

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 13, 2001
- Submitted: November 28, 2001
- Operation: Air carrier
- Aircraft: [N407LG](https://openairdocs.org/aircraft/N407LG), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53143
- System (JASC): [6230 · Main Rotor Mast/Swashplate](https://openairdocs.org/jasc/6230)
- Part: Link
- Part number: 406010432101
- Condition: Damaged
- Location: Swashplate
- Part time: 956 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/CYX2001F00000

## Discrepancy

BEARING (PN 406-310-403-101) SLID OUT OF THE SWASHPLATE ANTI-DRIVE LINK UPPER END APPROXIMATELY .280 INCH.  THIS ALLOWED THE UPPER END OF THE DRIVE LINK TO CONTACT THE SWASHPLATE LUG AND CAUSE SOME REPAIRABLE DAMAGE TO THE SWASHPLATE LUG.  THE ANTI-DRIVE LINK WAS DAMAGED BEYOND REPAIR.  AN INSUFFICIENT ROLL STAKE PROBABLY ALLOWED THE BEARING TO COME OUT OF THE LINK.  THIS CONDITION WAS DISCOVERED DURING A ROUTINE INSPECTION.(K)

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