Bubble Copter
If the bottom of the front sus bar was not anchored as per some of the 'maintenance theories' then surely the bar would have come away with the MR head un-challenged and the top attachment wouldn't have been damaged?
Does the fact it's broken away not indicate that it was still secured at bottom when it separated?
Not necessarily, if the unsecured front bottom suspension bolt slipped out (2-3 months after installation) the bar would still remain sandwiched between the 2 engine firewalls. After input bearing failure->epicyclic failure, the head would have twisted off, but the bar could have remained stuck between the two firewalls, the top eyelet would have had to bear the brunt of the shear forces and broken off. I'm surprised that there is no picture yet of the bottom bracket area, either showing it intact, or ripped out of the frame. The front bar appears to be missing.
The last thing the investigators want to do now is link this accident to a HS/CHC mechanic error without being 100% sure (120% sure?), as this could tear their community apart.
The Norwegians integrity/professionalism is second to none, so the cause will be revealed...but it'll take time.