Lack of beluga crews. From March or April a few patterns operated by the Beluga will be operated for six to twelve weeks by the tractor. When one pattern returns another will be rotated out. Could be up to three at a time. This is even after all the trans Tasmin flying stops and saves crews. The 207 is rumoured to make a return once crew numbers are fixed. With recruiting going so well it shouldn't take too long to fix right? Maybe some lucky tractor drivers given a move to the flagship as well. Should go really smoothly.