Why on earth is there always this pointless speculation. Those who have been involved in helicopter flying for donkey's years KNOW what the possible causes MAY be - but that's all. For goodness sake wait for the AAIB to do their job. Rant over!
It was stated in the media that the AAIB investigation may take up to a year before publication of a formal report (as we know, this isn't an unusual length of time because of the fine detail they must go into).
At the moment, there are many folks with no knowledge of helicopters who are hurting very badly indeed. Understandably so. Do we, as a profession, not owe them some form of reasonable explanation or understanding as to why why their loved ones are gone forever in this tragic accident?
Or do we, as a profession, simply clam up and tell them to wind their necks in and wait a year, allowing others with no relevant knowledge to be paraded in the main media and spout what is often ignorant rubbish? I think I have a good idea what the bereaved would prefer.