Hello all,

In the FCOM vol1 16.5SP it mentionned the way we engage wing and engine anti ice.

For wing anti ice they mentionned that it can be activate between the engine start and TO.

So I Wonder two question; Can we keep the wing anti ice while takeoff and if no at wich moment we can engage it?

And in second at wich moment of the flight we should desactivate engine and wing anti ice if we take off with engine and wing antiice? Cuz when passing over the clouds I presume there are no more moisture, snow,freeze;.........

 

I know that's required a little moment for answer so thank's in advance for eventual reply ;)

Regards

18 hours ago, Johan Durand said:

Hello all,

In the FCOM vol1 16.5SP it mentionned the way we engage wing and engine anti ice.

For wing anti ice they mentionned that it can be activate between the engine start and TO.

So I Wonder two question; Can we keep the wing anti ice while takeoff and if no at wich moment we can engage it?

And in second at wich moment of the flight we should desactivate engine and wing anti ice if we take off with engine and wing antiice? Cuz when passing over the clouds I presume there are no more moisture, snow,freeze;.........

 

I know that's required a little moment for answer so thank's in advance for eventual reply ;)

Regards

Wing anti-ice is typically used on the ground if operating in icing conditions and the wing has not been anti-iced with type 2 or type 4 fluid.  The wing anti-ice valves will close when takeoff power is set and the wing anti-ice switch will trip off when the aircraft lifts off the ground.

If wing anti-ice is required after takeoff it is recommended to turn it on after reaching 1000' AFL.

Engine anti-ice can be turned off when you are no longer in icing conditions.  Wing anti-ice can be turned off when the wing is no longer accumulating ice.  Conditions that require the use of wing anti-ice in flight on the 737 are rare.