I've been wondering ..........
If pilots of an airliner were picking up ice during their descent for arrival & approach to their destination, and they were a little faster than ATC liked, would they still use their speed brakes (spoilers) to slow down?
I'm wondering about the buildup of ice that could occur on the spoiler panels themselves and the internal parts of the wing & the spoiler actuators, etc, when flying through icing conditions such as "mixed moderate" icing.
Can ice build up to the point where the spoilers won't be able to fully retract into the upper surface of the wing - thus reducing lift - or are the hydraulic actuators powerful enough to smash away any ice that's forming on the spoiler panels while they're deflected into the airstream?
I guess what I'm asking is ....... is it Standard Operating Procedure (SOP) for some airliner flight crews to NOT use speed brakes during known icing conditions, or is this not a concern?
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