CNN New Day Saturday March 8, 2014 12:04:00
>> this flight occurred just about a third into the way of a six-hour flight. technically, what's happening at that point, and what might cause a problem? i've heard this might have been considered the safest part of the flight? >> reporter: there's no question. this plane was -- the phrase is in the cruise. it was flying at about 36,000 feet according to the various logs. it will have been maybe drifting up slowly, as it was burning off fuel. but this was -- the plane would have been on autopilot. both pilots would have been doing regular check calls, on-route checks to the various air traffi...