What do you think brought on the Russian plane accident?

[MasterPhil]

I thought it may have been a specialized blame yet now there's a tolerable shot of a bomb on load up since powers said it split up mid-flight. Low likelihood of a rocket shooting it down, yet a bomb is conceivable.

 

[TheGrandAdmiral]

I have heard that the cause of the accident was faulty repairs, but terrorism cannot be ruled out given the current state of affairs.