Originally Posted by
gravityf1ghter
On taxi in, in contaminated conditions, it is stated (B737) to not retract the flaps if there is suspicion of ice, and to retract once they have been suspected and seen to be clear of ice.
if they are inspected and found to have ice build up- then what? De ice with flaps in the landing position, retract the flaps and de ice them again with flaps up?
In Helsinki the de-icing crew shows up at the parking gate and removes the build-up, after which the flaps can be retracted. If it's snowing, a "real" de-icing is probably required after the turnaround. The normal procedure is then, of course, required.