@PBL, as maintenance manager for 3 operators and now for a cooperate operation I have seen a few ADīs. Some of them are written in such a way that you really wonder WHAT to do WHEN and under WHICH condition.
This is especially true when the manufacturer has come up with a SB or SL before and one complied to that...
I havenīt read the AD concerned, but as a non-native english speaker I feel that there is an area that needs improvement. Iīd guess that AA has some native english speakers available, so most likely that is not a point for this thread....
Oh, and BTW: ANY AD that comes up for my airplane is done ASAP. No chances taken there...