Hi,
From Airbus Supplementary Techniques:
ENGINE ANTI-ICE must be ON during all ground and flight operations,when Icing conditions exist,or are anticipated,exept during climb and crouse when the SAT is below -40C
ENGINE ANTI-ICE must be ON before and during descent in Icing conditions,even if the SAT is below -40 C
Can anyone explain,why we need to swich ON Engine Anti-Ice during descent in such LOW temperatures ? Thanks a lot