# SDR ASAA2022121041092

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 10, 2022
- Submitted: December 12, 2022
- Operation: Air carrier
- Aircraft: [N493AS](https://openairdocs.org/aircraft/N493AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41727
- Aircraft time: 24,195 hours, 7,609 cycles
- System (JASC): [3020 · Air Intake Anti/De-Ice System](https://openairdocs.org/jasc/3020)
- Part: Anti-Ice Valve
- Part number: UNKNOWN
- Condition: Inoperative
- Location: Unknown
- Stage of operation: NR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022121041092

## Discrepancy

#1 ENGINE ANTI-ICE VALVE DOES NOT ACTUATE WITH THRUST AT IDLE. THRUST NEEDS TO BE INCREASED TO GET VALVE TO MOVE. GROUNDED - YES. PERFORMED ENG#1 IDLE RUN PER B737-900 AMM 71-00-00/501 NO FAULT PERFORMED B737-900 FIM 30-21 TASK 802 OPS CHECK OK.

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