# SDR DBCA2013123100011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 2013
- Submitted: January 3, 2014
- Operation: Air carrier
- Aircraft: N605SA
- Make and model: Cessna 650
- Registry model: [Cessna 650](https://openairdocs.org/model/cessna-650) (OpenAirDocs)
- Aircraft serial: 6500152
- Aircraft time: 9,956 hours, 7,069 cycles
- System (JASC): [2211 · Autopilot Computer](https://openairdocs.org/jasc/2211)
- Part: Computer
- Part number: 7000473903
- Part serial: 83090133
- Condition: Faulty
- Location: Autopilot Sys
- Part time: 1,772 hours, 1,418 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DBCA2013123100011

## Discrepancy

AFTER DEPARTURE FROM MKE THE CREW NOTED THAT WHEN THE AUTOPILOT WAS COUPLED TO THE NR 1 FLIGHT DIRECTOR THE AILERONS SEEMED TO, TWITCH, NOT MOVE SMOOTHLY.  EVERYTHING WAS NORMAL WHEN COUPLED TO NR 2 FLIGHT DIRECTOR.  CREW RETURNED TO MKE.  TROUBLESHOT TO AUTOPILOT COMPUTER.  REPLACED AUTOPILOT COMPUTER WITH OVH UNIT, OPERATIONS CHECKED GOOD.

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