PPRuNe Forums - 737NG wing anti-ice

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fivegreenlight

27th February 2008 21:56

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.

mrjet

27th February 2008 22:49

Momentary illumination of the cowl-anti ice light (overpressure in the engine anti-ice duct)

slip and turn

27th February 2008 22:54

Quote:

Originally Posted by fivegreenlight

...Seen this a few times on different NG's

Has it ever caused you to abort ? :E

fivegreenlight

28th February 2008 07:01

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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