Thanks Munster.
Do you have a reference to this type of procedure you could point me to online?
I just want wizz ot know that I'm not going to just accept their answer.....so if I can point them to the reference materials I am using, then maybe this will help......
I also intend to ask for the pilots log / paperwork showing the problem - which of course they wont give, but i'll ask all the same.
thanks again for your reply,
Neil