I don't see any problem at all. Main concern is, are your existing academics suitable to get you into one of RMIT, Sydney, or NSW (presuming you are, indeed, in Oz) ?
Then, the main decision is whether you
(a) look at doing the undergrad work full time or part time
(b) are more interested in Industry or academic work following graduation.
If you are looking at
(a) Industry, the need will be to get a couple of years work experience somewhere - shouldn't be too much of an ask - and then you should be able to market your flying etc., experience to get into areas more aligned to your specific interest. I would reckon that the airlines would have an interest in, say, the ops engineering areas for starters.
(b) academia, the need will be to start the post grad grind .. Masters and PhD.