Training Wheels
"This article from the local press reports that the accident happened during take-off and not landing, which brings up the possibility of a right engine failure after take-off. If so, and with wind gusts up to 31 knots, it would have been a huge struggle to keep it straight and maintain V2."
So why the full flaps? Normal takeoff is F10, and that is the desired flap setting with an engine out inflight. Doesn't compute unless they lowered flaps prior to touchdown...with doesn't necessarily compute.
Unless the autofeather was inop, a loss of power after V1 in a Twin Otter is manageable, assuming the airport is near sea level.