Originally Posted by
The Ancient Geek
They had valid Australian licenses which had not been fully validated for the SA registered aircraft. A paperwork issue.
The FO had a valid Australian Air Transport, Commercial and Private Pilot Licence, however he was not type rated on the aircraft (Convair 340/440).
Looks like more than a "paperwork" issue. Looks like the FO needed a CV340 type rating and didn't have one, on any license.