Lady Howell

The people investigating have said they doubt that terrorism is involved. I think agree with that but have no idea what happened.

Maybe their navigation got jacked up? The good thing is that if they headed west, they must be flying over land most of the time, unless they turned south, so at least if they run out of fuel or have to land to refuel, there's no worries about them plummeting into the ocean.

They were most likely flying over water as any crash on land would've been noticed. The phones of the passengers can still be called and are ringing but no one's answering, so the plane didn't crash and destroy them. But now they've seen that the plane had enough fuel for thousands of miles, so they could be further in the Pacific then first thought.