# SDR CALA2026012013113

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 18, 2026
- Submitted: January 20, 2026
- Operation: Air carrier
- Aircraft: [N37540](https://openairdocs.org/aircraft/N37540), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 64471
- Aircraft time: 11,744 hours, 3,852 cycles
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Sense Line
- Condition: Contaminated
- Location: Na
- Stage of operation: CR
- 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/CALA2026012013113

## Discrepancy

LEFT VALVE CAUTION LIGHT ON WING ANTIICE PERFORMED FIM 30-11 TASK 808. OPERATED VALVE FROM COCKPIT AND OBSERVED LEFT WING ANTI-ICE VALVE MOVING AS SWITCH  WAS OPENED AND CLOSED FROM COCKPIT. SUSPECTED MOISTURE WAS IN SENSE LINE IN VALVE. ONCE VALVE WAS WARMED UP. VALVE OPERATED CORRECTLY.

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