|Noel Jones / https://www.flickr.com/|
It looked to arrive from the Gold Coast and depart to Alice Springs.
UPDATE! N526CH continued to Ayers Rock on Saturday 13 April.
I believe that the Cessna is based in New Zealand as photos of it at various airports across the ditch have featured during most of the 2010's. In fact, it had arrived into the Gold Coast from Kerikeri / Bay of Islands Airport earlier in the week.