Yotty you correct in what you are saying, what l was trying to point out that it is the airline quality department and not the engineering quality department that carry out the following.
Any variation under the 10% is approved by them and over 10% is has to be approved by the regulatory authority.
Some airlines have what is referred to as indirect approval, in that they can approve the AMP revision without waiting for the authority to approve it.
Any thing outside of a normal MPD driven revision or a brand new a/c being added within an AMP revision has to be approved by the authority.
You are correct in any AMP revision has to be cleared or as above approved by the airlines QA beforehand and then if required sent to the authority for approval.
