Hi,
This is not about icing pitots... the crew are there for just that reason
I want to disagree ...
The pilots are not "there" to correct a instrument fitted and designed for other purpose
By other purpose i mean .. not designed for work in the domain where was the plane
It's not to the pilots to correct bad design .. but it's the duty of the designers and the duty of the certification bodies ...
The problem was know .. and despite this .. planes (passengers and pilots) were send in a aera (altitude - region) when the problem can arise ...
If they had not icing .. never this tragedy had happened ... period
End of rant about pitot tubes ...