# SDR DXTA2025052703628

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 24, 2025
- Submitted: May 27, 2025
- Operation: Air carrier
- Aircraft: [N640QS](https://openairdocs.org/aircraft/N640QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0242
- Aircraft time: 5,783 hours, 3,838 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Proximity Switch
- Part number: S28001256
- Condition: Defective
- Location: Zone 800
- Stage of operation: NR
- 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/DXTA2025052703628

## Discrepancy

CABIN DOOR OPEN AMBER CAS: AMBER CABIN DOOR OPEN MSG ILLUMINATED ON GROUND, RAN QRH PROCEDURE. MSG DID NOT CLEAR. CORRECTIVE ACTION: REPLACED PROXIMITY SWITCH REF CE680A AMM 52-70-10. OPS CHECK GOOD.

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