Here is a higher quality video.

http://www.canada.com/globaltv/natio...-9a6241666200#
Click "Watch video of the crash"


It show the take off, the brief hover and the sudden
descent. It then cuts to a different shot
so it is impossible to tell how long the
maching was in the water. It is easy to
assume that there was no delay between the
'landing' and the take off but it is not at all clear.

This video also shows a spout of water
coming out of a hole in the under nose
"radome" as the helicopter rolls over.

Maybe the hard landing for some reason
caused a hole that allowed water to
enter the "radome" and it was this water that
caused the failed take-off.