I understand very well your concern about the "temperature history" of BA38.
I follow this thread since post # 1 and I didn't get documented data about ground and flight temperatures the aircraft met during the flights and the days before.
We know that there was no "fuel draining" before the flight to London and that there were some fuel ice messages.
We know also that the flight was operated well higher and colder than initially planned, and that the crew didn't ask for descent into warmer temperatures over eastern Europe while other aircraft did. That's about all ...
I just hope the investigators are looking carefully into weather records.
In my past career, I got my share of temperature related problems with fuel, fuel systems and other aircraft systems as well, all in duly certificated aircrafts and components. And yes, at some points, we had to switch aircraft on cold sectors.
Welcome!
