Katter's bill is well intended but needs some extra tuning so as not to disadvantage any of the airlines in the immediate future.
It would be fantastic to have a majority of all airline maintenance done here but the operators that do not have much, or any local maintenance need to have time to set up. Incremental change and some carrots not a bloody big stick. You can't legislate to send someone broke, so the bill needs work, to make it work.
Saying all that, it is dead given neither of the majors would give Katter the steam off their droppings without being put over a barrel.