If the ATSB investigation is to be "clean" and independent of previous line of management, this independence must go all the way to the top.
Remember this
Alarming air safety failures revealed in Senate Inquiry | Nick Xenophon - Independent Senator for South Australia
"The quality of evidence provided to the committee by the ATSB's Chief Commissioner Martin Dolan called into question his credibility as a witness;"
and this
ATSB chief's testimony lacked credibility: Senate | Plane Talking
“Mr Dolan’s evidence in this regard is questionable and has seriously eroded his standing as a witness before the committee.”
If the Senate Inquiry lost confidence in the Chief Commissioner, then how can we be expected to have confidence.
If Mr Dolan is to remain as chief, there must be a mechanism of keeping him out of the loop this time. Perhaps the report should only go as far as Chris Manning (the new Aviation Commissioner) and then direct to the Minister (far from perfect, but what else can we ask).