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737NG wing anti-ice

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Old 27th Feb 2008, 21:56
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737NG wing anti-ice

With engine and wing anti-ice selected on, why does the master caution briefly illuminate as the thrust levers advance for take off? ( I know the valves close as the levers advance and the wing AI switches trip off as the aircraft gets airborne.) Seen this a few times on different NG's and can't find a reason.
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Old 27th Feb 2008, 22:49
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Momentary illumination of the cowl-anti ice light (overpressure in the engine anti-ice duct)
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Old 27th Feb 2008, 22:54
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Originally Posted by fivegreenlight
...Seen this a few times on different NG's
Has it ever caused you to abort ?
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Old 28th Feb 2008, 07:01
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MrJet, I guess you're right, why does't it ever happen on the 300/500?

S&T, in short..no.
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