UCLogic ....
I have no reason to doubt what you say ..... I did say my post was a rough guide .... and without specific examples to quote I think covers the reality of most cases .... It is the responsibility of the a/c maintenance organisation to determine whether there is a requirement for action in that direction (ie update of AFM) if it is not required by the appropriate authority obviously it won't need to be done!
And with regard to griffo's original post .... how would you know what modifications to an aircraft are or are not approved without the update/supplement in the AFM .....
Cheers
