# SDR DXTA2026100710026

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 4, 2026
- Submitted: October 7, 2026
- Operation: Air carrier
- Aircraft: [N977QS](https://openairdocs.org/aircraft/N977QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0435
- Aircraft time: 1,474 hours, 1,028 cycles
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Control Valve
- Part number: 99145523
- Part serial: 1604C
- Condition: Failed
- Stage of operation: DE
- How discovered: C
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026100710026

## Discrepancy

WHILE BEGINNING DECENT AT ABOUT 30000 WE NEEDED WINGS AND COWLS FOR AI SO WE TURNED THEM ON. WE THEN RECEIVED THE A/I WING X FLOW CAUTION MESSAGE.  AFTER TURNING ON THE XFLOW THE MESSAGE. TURNED TO WHITE AND WE EXITED AND AVOIDED ICING CONDITIONS. CORRECTIVE ACTION: REMOVED DEFECTIVE WING CROSSFLOW VALVE AND INSTALLED SERVICEABLE VALVE, PERFORMED OPS AND LEAK CHECK IAW CE680AS MM30-10-10. OPS CHECKS GOOD, PN ON AND OFF 9914552-3 SN ON 1509C SN OFF 1604C.

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