# SDR 2011FA0000396

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 14, 2011
- Submitted: June 24, 2011
- Operation: General aviation
- Aircraft: [N587QS](https://openairdocs.org/aircraft/N587QS), registered now
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605805
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Shaft
- Condition: Worn
- Location: Rudder
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2011FA0000396

## Discrepancy

FOUND GROOVES WORN INTO SHAFT OF THE 2 SCREWS THAT ENTER INTO THE RUDDER ACTUATOR ASSEMBLY.  ACFT IS SET FOR CRUISE CONFIGURATION: DURING FLIGHT, TAIL VIBRATES CAUSING GROOVES TO WEAR INTO SHAFT OF SCREWS AT POINT WHERE SCREWS ENTER INTO ACTUATOR.

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