Sorry, been away contributing to my 900.....
Noticed this gem a couple of pages back re short notice hires:
If they're rated and current just an OPC and minimal line sectors.
The insurers will probably beg to differ as there won't be anyone available to give the new hires the minimum line sectors to be signed off with an approval to work to a recognised set of SOPs. This is a requirement of the operations certificate. Basically, everyone at a particular company has to sing from the same hymn sheet SOP wise, so odds and sods arriving from all over the world would require several sims and several line sectors before they could operate together. The theory's good but as HS said, we're irreplaceable in a hurry!!