On the B717, Qlink engineers are signing Cobham paperwork on behalf of Qlink (they have approval). Cobham are the Part 42. Half the engineers in Canberra aren't directly employed by Qlink, they are employed illegally through Sigma and are contracted to Qlink. Do a bit of research, ask your tax accountant or ask the ATO. If you earn 100 % of your income from 1 company, If you are only providing manpower etc you are considered a full time employee. There is plenty of case study on this. It's no secret. Korr will do the same thing with the heavy work. Cobham, whilst being a contract company, meaning they have a contract with Qantas employ people legally as full time employees. It's really not that hard.