Just asking - would have thought divert to Darwin/Broome/Port Hedland whatever, super efficient company back in the bunker files appropriate paperwork, throw on some fuel and off you go.
Suppose a query for immigration at some ports, heavy crewed so FTL's or overnighting crew??
If you believe the papers aircraft substitution pretty well standard at JQ these days so an amateur effort, something for the new CEO lady/QF CEO in grooming (apparently) to sort out.
Cheers