Leatherman, you really do not know your facts at all. Prestwick is home to PAML a subsiduary of Ryanair with its own 145, they are the designated heavy maintenance provider for Ryanair and carry out four lines of maintenance with the new hangar now up and running with its various workshops. The c checks there consist of C1 ( a few days ) to C6 ( 2 weeks ) and all in all it is a very big investment from Ryanair, and not easily moved elsewhere regardless of how many other hangars they construct across Europe.