I can't see how C/C could be dismissed and then hired again.If they refuse to sign a new contract, the airline is grounded
Very true, except few, if any, will refuse to sign. Why? Because unemployment in Ireland is currently 13.3% and still rising. That's the equivalent of over 4 million unemployed in the UK. Meanwhile a large proportion of private sector workers still in a job have taken pay cuts, and every public sector worker has done so. And Mueller wants to get rid of 25% of the cabin crew anyway, so I rather doubt he's too worried right now about not having enough staff to crew AL's reduced number of flights.