# SDR DXTA200702275

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2007
- Submitted: July 10, 2007
- Operation: Air carrier
- Aircraft: [N986QS](https://openairdocs.org/aircraft/N986QS), registered now
- Make and model: Cessna 750
- Registry model: [Cessna 750](https://openairdocs.org/model/cessna-750) (OpenAirDocs)
- Aircraft serial: 7500086
- Aircraft time: 5,875 hours, 3,832 cycles
- Engine: Allsn AE3007C
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Roll Servo
- Part number: 4006719918
- Part serial: 05079657
- Condition: Inoperative
- Location: Autopilot
- Part time: 133 hours, 82 cycles
- Stage of operation: DE
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA200702275

## Discrepancy

DURING DESCENT FROM CRUISE AUTOPILOT ROCKS WINGS BACK AND FORTH BETWEEN FL410 AND FL360 WITH A/P DISCONNECTED AIRCRAFT FLIES LEVEL WITH NO ROLL.  REMOVED AND REPLACED THE ALLERON SERVO MOTOR WITH A MODIFIED SERVO MOTOR IAW CESSNA CITATION 750 AMM 22-10-01. OPERATIONAL CHECK WAS SATISFACTORY AT THIS TIME.

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