# SDR ASAA2021083035835

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 30, 2021
- Submitted: September 2, 2021
- Operation: Air carrier
- Aircraft: [N535AS](https://openairdocs.org/aircraft/N535AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35200
- Aircraft time: 38,982 hours, 11,181 cycles
- System (JASC): [7510 · Engine Anti-Icing System](https://openairdocs.org/jasc/7510)
- Part: Anti-Ice Valve
- Part number: 32156185
- Part serial: 10763
- Condition: Inoperative
- Location: #1 Engine
- Part time: 22,930 hours, 8,154 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021083035835

## Discrepancy

LEFT COWL ANTI-ICE VALVE DOES NOT OPEN, LIGHT REMAINS BRIGHT BLUE WITH LEFT ENGINE ANTI-ICE SWITCH ON. GROUNDED - YES. REMOVED AND REPLACED ENG 1 TAI COWL VALVE REF AMM 30-21-11-400-801. OPS CHECK GOOD.

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