Hi,
Machinbird
My French is terrible, but what does the short sentence at the top of the procedure posted by Flyinheavy say? It seems to indicate that if the conduct of the flight is endangered then.........
If that is anywhere close to the meaning, then at cruise FL, the procedure is NA.
Pitot tubes blocked trigger an "unsafe condition"
So .. cause this unsafe condition ... "the conduct of the flight is endangered" IMHO