Lots of people pointing fingers at high density altitude issues...........the Ju-52 was one of 3 fatal accidents in Switzerlandwithin a few days where high density altitude was possibly a contributing factor, with pilots being caught out by the heatwave across Europe.....and mountain flying close to max aircraft performance margins leaves little very little room for errors, even for very experienced crews.
Awful crash.
The crashed Ju-52 was the one they used for filming the scenes in Where Eagles Dare.