Bernd;
Since this would be classified as an accident, and not an incident (significant damage occurred to the aircraft structure) wouldn't there automatically be an official investigation by the ATSB? Complete with preliminary (possibly interim) and final report?
I hope so, Bernd. So far, nothing has been published regarding the details of the accident. I can't recall if it is ICAO or merely NTSB policy that a preliminary report must be published within 30 days of an accident. What is of course disturbing is the way the crew has, apparently, been handled. There is nothing here nor elsewhere to refute the rumour that the crew has been fired. In fact the entire incident has gone silent, which is not how flight safety work is done, as we know.