Comment Re:Probably lost the sale, too! (Score 1) 339
errr..... no, I'm sorry, you're wrong on ALL points.
light aircraft (including light passenger carrying aircraft) operate at up to 13000ft without oxygen or pressurisation (limited to 30 minutes by law between 10000 and 13000 feet). There is NO way that this was a pressurisation problem.
Sounds like controlled flight into terrain (CFIT) from everything. Misjudging the slope or narrowness of a valley and not being able to climb out of it. Most likely when the pilots are unfamiliar with the territory (such as Russians in Indonesia)
Winds, downdrafts affecting climb performance, possibly extreme turbulence.. those might all have been factors (mountains in areas with rapidly changing weather can be somewhat troublesome), but cabin pressurisation will probably not even have been ACTIVE due to the altitude they were operating at.