Until they find some hard evidence, it might be a good idea, like been posted above, to think of all the things that can lead to something like this.
Deliberate actions by crew: A flight engineer attacked both pilots of Federal Express flight 705 with hammer and speargun in murder/suicide attempt. The pilots did successfully return though and the guy was arrested, tried and sentenced. Germanwings Flight 9525 saw the pilot commit murder/suicide.
Malfunctions. It is possible albeit extremely unlikely that the plane lost all electric power/radio/communications for some bizarre reason. Ice can cause sudden crashes. Ground maintenance errors like forgetting to remove duct tape covering the pitot tubes.
Structural: Airliners have disintegrated for no immediate apparent reason while in the air before. Comet, the first jet airliner (design flaw), China Airlines flight 611 (improper, previous repairs) and more.
Terrorism: Is a candidate too.
Last edited by Von Due; 05-20-16 at 12:51 PM.
Reason: Silly typo
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