Brass crash
How about waiting a little more time before giving a seek all answer to this accident. I am sure that Eurocopter and Aero Contractors, as well as all other operators of the 365N2, want to know the answers.
I do not see what possible good it does to try and list every possible cause of a helicopter accident when you are looking at one incident and trying to find the reason.
Let us wait and hope to find the truth.