Doug, not working! Days off man, back on sunday night, then Monday day!
As to the wreckage, seems to me to be in line with a highspeed direct impact when you see the wreckage pattern, size, considering proximity to ridge, I wonder if they were trying to skirt the top and misjudged.
I'm assuming a new plane such as this would have terrain radar and the usual GPWS warnings, if turned on. (Maybe turned off by crew for fancy demonstration flights?)
Alternate scenario, cloud deck of 8000 feet, pilots request 6000 to get under cloud for their googly eyed passengers, crew not aware of Mount Salak, what surprises me more is that ATC would clear an airplane to descend to 6000 with a 7200 foot mountain in the area, the MEA's and MVA's should be much higher than that.
there's more to this story than just flying into a mountain