Comment by potamic

There's also maintenance lapses, faulty repairs, defective parts, and as far as software goes I can think of n number reasons how a ghost can manifest itself inside program logic. This is a new gen plane that relies more on software than any other before, and has in fact seen a couple of incidents with loss of thrust, both related to software. I think it's more prudent to be asking hard questions around these than to outright dismiss it as an open and shut case. Besides, the murder/suicide angle is the least interesting outcome. Because there's nothing you can do after that, other than to just move on.