There apparently was a lack of oxygen, which is usually the case when the cabin is de-pressurized.

What troubles us is that the automatic pilot was functioning up to a certain point, and then it was disengaged, possibly by human action.

The only fortunate event in the investigation is that we have the flight data recorder.

We don't know if we will be able to get something from it.

It's in a bad state and, possibly, it won't give us the information we need. Both boxes will be sent to Paris where a French committee will help us and the foreign experts that are here to decode.

I stress that a flight reconstruction of this size has never happened before in Greece and I'm of the impression that the whole scenario of this flight has never happened before in the world.