Strange use by the military of the description "mishap" - which in my book is a small mistake / unlucky accident / misfortune. However ....
I note some crew members had total flight time equal to their flight time on CH53 - is that erroneous reporting, or possible? And the low total hours makes one realize their vulnerability without sufficient and regular competency training.
I spent more time offshore so easily forget the pressures within the military, but it makes me wonder if Safety Culture has been developed enough when the Aviation Safety Officer is noted as having a heated discussion on the previous day about the execution of that particular flight - and no-one took enough notice - does he not have direct access to the unit commander?