Yes, there is:
http://www.sust.admin.ch/pdfs/AV-berichte//2141.pdf
As probably you could not read other than english:
cause of accident: 1. flight into IMC conditions at 3000m above sea level within a 3to 4 octas broken layer starting at 11000ft and above
2. bad choice of flifth path, bad tactic for high mountain flight.
