Seems the aircraft flying QFA479 this evening has an incorrectly programmed transponder (according to FR24 it was VH-XZI). Was showing up as VH-XXU (registered to a Eurocopter AS 350B3)!
https://aviationspotting.au/tempfile...2026%20Jul.png
https://www.flightaware.com/live/fli...810Z/YSSY/YMML
https://www.flightradar24.com/data/f...qf479#36555137