# SDR ASAA2023031242301

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2023
- Submitted: March 13, 2023
- Operation: Air carrier
- Aircraft: [N972AK](https://openairdocs.org/aircraft/N972AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43389
- Aircraft time: 3,905 hours, 1,112 cycles
- System (JASC): [3000 · Ice/Rain Protection System](https://openairdocs.org/jasc/3000)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- 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/ASAA2023031242301

## Discrepancy

ON DESCENT WING ANTI ICE WAS TURNED ON. L VALVE ANNLIGHT ILLUMINATED. TURN OFF ANTI ICE SWITCH AND LIGHT WENT OUT. GROUNDED - YES. PERFORMED WING ANTI ICE OPERATIONAL TEST IAW B737-9 AMM 30-11-00, OPS CHECK GOOD,OPERATE NORMAL AT THIS TIME.

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