“Move the flaps from Flaps up to Flaps 40 back to Flaps up (i.e., full travel) to ensure freedom of movement” SP.16.6
So. They want we do full travel to Flaps 40 when :
“Icing conditions exist when OAT (on the ground) or TAT (in flight) is 10°C or below and any of the following exist:
• visible moisture (clouds, fog with visibility of one statute mile (1600m) or less, rain, snow, sleet, ice crystals, and so on) is present, or
• ice, snow, slush or standing water is present on the ramps, taxiways, or runways.” SP.16.2
IMHO. It is hard to understand why we have to cycle to 40 if OAT is 9°C, visibility of one statute mile (1600m) or less, especially if no rain, snow, sleet, ice crystals is present.