# SDR ASAA2022100140126

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2022
- Submitted: October 3, 2022
- Operation: Air carrier
- Aircraft: [N919AK](https://openairdocs.org/aircraft/N919AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44087
- Aircraft time: 5,179 hours, 1,622 cycles
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Anti-Ice Valve
- Part number: 632160683
- Part serial: 6321606810356
- Condition: Faulty
- Location: Left Wing
- Part time: 5,179 hours, 1,622 cycles
- Stage of operation: DE
- 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/ASAA2022100140126

## Discrepancy

DURING DESCENT "L-VALVE" LIGHT WHILE USING WING ANTI ICE. GROUNDED - YES. REMOVED & REPLACED LH WING THERMAL ANTI ICE VALVE IAW B737-9 AMM 30-11-11.

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