They do Crew Changes to pearl farms between Darwin and Broome amongst other things I guess. Paspaley operates them privately I believe. I dont know much about getting a gig on one, but I imagine there is a decent que to get behing and not too many people leaving the fleet I would think (just my assumption).
We used to clean them when they overnighted in broome and they are lovely aircraft. All PT6 turbine engines too after an expensive retrofit I believe.
Someone may like to correct me too, but I believe the Chalk Air (think it was) that crashed after a wing fire was not a Turbine was it?
Anyway, at sunset in Broome, I have not seen a nicer sight in aviation as the Mallard on short final... Anyone care to agree!?
Cheers