Much importance has been attached to the following:
at 02:14Z the last message received was an advisory regarding cabin vertical speed.
One very important piece of information is missing though. Was the cabin vertical speed indicating a climb or a descent?
If there was some form of explosive decompression it would of course be a climb. But the cabin cabin vertical speed advisory was the LAST in the sequence of advisories. That could easily be interpreted to be that the cabin was intact and pressurized during the descent to the water. It was only when the cabin descended below the altitude of say 8,000 feet that we would then see a cabin vertical speed indicating a rapid descent rate.
Does anyone know if the "advisory regarding cabin vertical speed" was a positive or negative value? And what was the actual rate of change?