Originally Posted by
clearedtocross
Thank you for the flowers, dear EDLB. Yes, I did cross the mountains many time on a piston engine. Thats why I consider myself as qualified to talk "rubbish". What's really rubbish is the ceiling cited in Wikipedia, at least for the JU-52 operated nowadays.
Let's see what the accident investigation has to say about this.
That an operator of a certain type of aircraft decides to impose a lower ceiling than previous operators have done before, or that the aircraft has been certified to before, does not mean that the previously certified ceiling is invalid.