I am so sorry to hear of this, and I do not know what you can do. Why did you refuse the counselling - from your narrative, it seems that the wagons closed against you after this?
My guess is that the owner of the aircraft has powerful connections in politics?
A good reason to be a member of a union. Would a union be interested in you joining them now and supporting you - probably not.
Have you taken this to a barrister for their opinion of a court case being successful?
Or is there an investigative television programme in Australia you might be able to interest in this?
Have you taken this to your local minister of parliament?
edit to add: Oh....did not see it was that long ago. Bit late now surely?