# SDR DXTA2026012806659

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 24, 2026
- Submitted: January 28, 2026
- Operation: Air carrier
- Aircraft: [N635QS](https://openairdocs.org/aircraft/N635QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0282
- Aircraft time: 5,431 hours, 3,519 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Downlock Switch
- Part number: 603733
- Condition: Defective
- Location: Zone 700
- 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/DXTA2026012806659

## Discrepancy

WHEN RETRACTING GEAR AFTER TAKE OFF THE GEAR DISAGREE LT AMBER CAS MESSAGE CAME ON WITH A YELLOW X IN THE LT GEAR DISPLAY.  REPLACED LT GEAR DOWNLOCK PROXIMITY SWITCH. OPS CHECKED GOOD IAW MM 32-30-15.

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