Thanks Mike, my apologies if by conflating the issues by using a bit of shorthand to save me time I caused any confusion. You did make us aware of the actual "trigger".
Your reply does however reveal the "difficulty" position in which you and we all have been placed by the philosophy and method
of the original implementation process.
They can hardly say they were not warned of the possible consequences.
1.The tick from CASA route might be a problem as I understand it was them who provided Airservices with the confidence to sign off on the 2b implementation safety case.
2. Expensive rock and a hard place.
3. I thought this NAS thing was supposed to make things simpler.
A most ingenious paradox worthy of a G & S opera plot.
What happened to the days when our Public Service was supposed to "do" all this stuff, and why does a private corporation now have to spend a substantial amount of money to protect themselves from them and the consequences of their action or inaction.
I see the lunatics are still with us, I would have said court jesters, but they were in fact, rather clever.