The customer has been waiting for Hydraulic tanks since May. They now have a program in place with the customer to bring buses in 1 at a time for the changing of the following parts,Engine mounts, intercoolers and Hydraulic tanks. The 6 hydraulic tanks originally sent will only do 6 buses and they will run out before the sea freight tanks arrive. If they do not have another 6 tanks air freighted then either the program will have to stop or the bus only has part of the work done and will have to be brought in again to finish the work.It is very expensive for the customer to have the bus off the road and will be extremely unhappy to have to take the bus off the road again to complete the work if the parts do not arrive in time.This is an FTBCI issue to taking so long to finalise the claim and therefore responsible to get the parts to the customer in tone to complete the work.Please organise the additional 6 tanks air freight ASAP.