YPKU...
http://www.atsb.gov.au/aviation/occu...ail.cfm?ID=653
Once again goes to show that our system relies heavily on big sky theory, a good lookout and lots of luck.
Why broadcast on the MBZ frequency when maintaining 9500' and if this was considered necessary then why not repeat the call on the area frequency which after all is the relevant airspace?
For those that do not know the YPKU MBZ is SFC-5000'.