We do lots of winter OPS here in Iceland and our policy states No T/o with contaminated wings, we always do a very good pre-flt walk around and in winter pay even more attention to ENG intakes , Fan blades and ctrl surfaces.We' ll perform de- ice when required and respect HOT (hold over time)if HOT is over then we'll de-ice again .I think if you take off with a clean wing you' ll be always on the safe side. Of course we 'll use Eng AI on TO and if conditions are really bad
(i.e. freezing rain)
we ' ll also use wing AI after TO.
Keep it Clean ,Keep it safe.
