[Innovative]

If there had been mechanical failure, the pilots would have sent a message.

That leaves the other possibility — some attack on board.

[Mr. Mojo]

That leaves the other possibility — some attack on board.

Or a SAM.

[rdl6989]

The sun should be up in the area now.

[BenLurkin]

[matt04]

I mean it’s possible said mechanical failure could have been so quick that a mayday would have been impossible to send. That seems very unlikely to me though.