# SDR ASAA2023012741702

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 27, 2023
- Submitted: January 31, 2023
- Operation: Air carrier
- Aircraft: [N946AK](https://openairdocs.org/aircraft/N946AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44085
- Aircraft time: 941 hours, 260 cycles
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Warning Light
- Condition: False Activation
- Location: Anti-Ice Valve
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023012741702

## Discrepancy

WING ANTI-ICE LEFT VALVE LIGHT ON CONTINUOUSLY WHEN WING ANTI ICE SWITCH ON. GROUNDED - YES. PERFORMED TEST OF WAI PER B737-9 AMM 30-11-11-710-801 OPS CHECK NORMAL LEFT WAI VALVE LANYARD VERIFIED CORRECT INSTALLATION.

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