It just goes to show that anyone can have a bad day. Sometimes you are lucky and get away with it to become older and a little wiser. Other times, you don't.
Condolences to the family and sympathy to the crew who will now go through the wringer.
UXB 99, from my albeit limited experience in the offshore industry they always have the rotors running when loading and offloading passengers.
I was told it was due to aircraft stability being low on start up and shutdown.