They have looked at the area before. they found nothing. but under this efficiency mode, you could assume that the aircraft would maintain attitude, flight attitude, could have lost the power and drifted down in one piece on the ocean and then subsequently then sunk and in that case it would have left, of course, no debris on the surface. >> over time even if that were the scenario and sinking over time wouldn't there be a breakup of the fuselage? some kind of materials? you know, coming from the plane and floating to the surface thereby creating a debris field? >> that could very well be and ...