Not a clue !
As an ATPL & Maintenance engineers licence holder I have seen the news reports and 14 pages above.
At the moment I could not say with any reliability what the cause of this incident was, about the only thing written above that I would agree with 100% is that we should wait for the AAIB report before speculating further.
However nothing that I say will stop the rubbish that is being spouted by the so called avition experts.