# SDR ASAA2021052834964

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2021
- Submitted: June 1, 2021
- Operation: Air carrier
- Aircraft: [N508AS](https://openairdocs.org/aircraft/N508AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35691
- Aircraft time: 46,760 hours, 13,805 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7510 · Engine Anti-Icing System](https://openairdocs.org/jasc/7510)
- Part: Anti-Ice Valve
- Condition: False Activation
- Location: Rt Engine
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021052834964

## Discrepancy

RIGHT ENG ANTI ICE COWL VALVE STUCK OPEN. GROUNDED - YES. DRY RAN #2 ENG AND CYCLED #2 ENG ANTI ICE COWL VALVE SWITCH TO ON AND THEN OFF, THE BLUE LIGHT EXTINGUISHED, OPS NORMAL REF B737-800 AMM CH 71-00-00-700-821-F00.

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