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Anyone expecting a "debris field" to turn up now is grasping at straws.
The passenger seat cushions on jumbo jets double as life jackets, but nobody ever gets to use them. Pretty much everything else sinks immediately, including the people, or, that is, what's left of them. When such a plane crashes in the ocean, there is a reasonable chance that some of the cushions would float on the surface for a few days, but that's about all. Besides, they're very small and likely would be invisible to aircraft. In a matter of minutes, they would be separated from each other, and drifting away with the currents, so that after one hour, they would no longer represent the place where the plane went down, nor would they be close to each other. If anyone were to find any cushions, they would have likely found only one or two, but nobody has reported finding any of them.
So it's rather impossible for them to still be floating and/or discoverable. What could happen is after a few more weeks, a few cushions might wash up on a beach somewhere, but that could be 200 miles from where they hit the water.
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