Considering the current climate, be interesting to see who was on the plane and/ or what the fallout from this is.

Assuming this isn't some kind of political attack, you have to wonder how much this is due to Iran's inability to trade due to sanction would impact its airlines ability to get updates to their aircraft. (Update: Not an Iranian jet so likely not an issue)

Which suggests Russia might be at the heart of this. Back to the original question about who was on the plane.