Originally Posted by
Owain Glyndwr
And one result of AF 447 was that the icing requirements were changed ......
But it is not (as of yet, anyway) retroactive, so older aircraft (which means virtually everyone) are potentially at-risk from a similar event.
There's still research going on into how to specify and address these kinds of conditions, as well, so the requirements are not frozen (ha ha) yet. (There's supposed also to be a flight test exercise out of Darwin, Australia, in the next couple of months to help with this; it might already have started)