Bloggsy sorry you thought that my post was harsh but my point about Mildura was that there is no such thing as a simple diversion to a regional airport especially if you are relying on a TAF. I agree Busselton has RNP-AR but I cant find an RNP-AR at Kalgoorlie. As others have pointed out there is also the issue of stairs etc. Company requirements would possibly still necessitate a walk around by a crew member before departure even for a refuel. The hypothetical about multiple maydays is irrelevant as on the day only one crew used a prescribed and legal procedure to ensure they landed with the statutory reserves intact. I doubt the crew didn't follow the QF fuel policy and will be supported by QF flight ops in their decision to continue to Perth. The ATSB won't produce a report that is very different to this one:
https://www.atsb.gov.au/publications...aair200401270/