"That must have been a regular approach,"
Read the report - the inaugural flight.
I did. I was referring to Teeemms comment that Aussies had been flying in the area for years.
Is the DME valid when it's an offset approach - in those circumstances DME does not represent track miles to run?
30° offset, of course it does.
but there appeared to be no SOPs for conducting it".
And that comes from where?
Because none are mentioned by the ATSB, as I said.
I expect they would have offset approaches adequately covered in their SOP's.
If that approach was following their SOPs...