I saw Beaker with my own eyes in Manly this morning, and he made a couple of asides about having been distracted by a long discussion in Canberra last night.
One interesting and valid comment he made was that they don't investigate GA accidents so much any more because it's the same accident over and over again. Valid in many cases, but again in the Hempel accident there might have been some CASA-stink mightn't there?
Very interesting that recent rail accident investigations have held up organisational & regulatory factors as significant factors, and these investigations are heralded as exemplary by expert associations.