The thing is, the AAIB are not there to apportion any blame, their job is to establish the facts of what happened as best as they can. The style of their report reflects this, i.e. it’s a list of facts along with some explanation for us non-aviation types.

They won’t be holding anything back pending any potential legal action because they won’t be taking any, but on the other hand they won’t publish anything they are not certain about either.