# SDR ASAA2022051338300

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 13, 2022
- Submitted: May 16, 2022
- Operation: Air carrier
- Aircraft: [N929AK](https://openairdocs.org/aircraft/N929AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43322
- Aircraft time: 1,263 hours, 328 cycles
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Anti-Ice System
- Part number: UNKNOWN
- Condition: Fault Message
- Location: Unknown
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022051338300

## Discrepancy

"L VALVE" LIGHT ILLUMINATES WHEN WING ANTI ICE SWITCH IS ON. GROUNDED - YES. PERFORMED OPS CHK OF WING THERMAL ANTI ICE VALVE ON #1 ENGINE REF B737-9 AMM 30-11-11. OPS CHK GOOD, NO DEFECTS NOTED.

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