# SDR 9JLA2021021222617

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2021
- Submitted: February 12, 2021
- Operation: Air carrier
- Aircraft: [N165DS](https://openairdocs.org/aircraft/N165DS), registered now
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5606175
- Aircraft time: 2,607 hours, 1,768 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Computer
- Part number: 8221108143
- Part serial: 3N3BX
- Condition: Defective
- Location: Flt Control
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9JLA2021021222617

## Discrepancy

THE FLIGHT CREW REPORTED THAT THE AUTO-PILOT KICKED OFF IN FLIGHT AT THE TOP OF DESCENT. THE MAINTENANCE PROVIDER REMOVED THE NO2 FLIGHT GUIDANCE COMPUTER P/N 822-1108-143 S/N 3N3BX AND INSTALLED AN OVERHAULED FGC. OPERATIONAL CHECKS WERE SATISFACTORY AND THE AIRCRAFT WAS RETURNED TO SERVICE.

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