# SDR AJXA2026100600049

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 2026
- Submitted: October 6, 2026
- Operation: Air carrier
- Aircraft: [N736XJ](https://openairdocs.org/aircraft/N736XJ), registered now
- Make and model: Cessna 750
- Registry model: [Cessna 750](https://openairdocs.org/model/cessna-750) (OpenAirDocs)
- Aircraft serial: 7500290
- Aircraft time: 12,890 hours, 7,402 cycles
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Yaw Damper
- Condition: Failed
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AJXA2026100600049

## Discrepancy

CASS MESSAGE "YD FAIL UPPER A" AFTER TAKOFF. AFTER TAKING OFF FROM KMDW WITH THE CASS MESSAGE THE PILOTS RETURNED TO KMDW. ONCE THE PILOTS WERE ON THE GROUND THEY PERFORMED A REBOOT OF THE ELECTRICAL SYSTEM AND THE FAULT DID NOT RETURN.

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