A320 Tankering & anti icing
 

Good day everybody,

let's say one has to do a two stage refuelling with an A320 and at destination the OAT is above zero but there's rain and/or visible moisture. If the flight time is long enough the remaining fuel in the wing tanks would be well below zero and if he FOB is above a certain value the upper chamber of the wing comes into contact with cold fuel thus leading to clear ice formation.
Does any one know which is the max FOB at destination in order not to have the upper chamber into contact with cold fuel thus avoiding de/anti icing?

Thanks!

At Thomas Cook there's an S.O.P to land with no more than 6t, even when tanking, to avoid ice formation.
Hope this helps.

As far as I remember 5000-6000 kg FOB was usually OK (I don't fly A320s any more), but with that amount outer tanks were still full of fuel. If you want to make sure that the whole wing remains uncontaminated consider landing with less than 3500 kg (approx.) as that is when transfer valves normally open and outer tanks start to empty.