Don't put to much on this AD, as this has been known about for over two years or more.
I think you will find that the airline industry has known about problems of transitioning to suction feed on Boeing airliners since at least 2001, a lot longer than two years ago:
http://www.pprune.org/forums/showpost.php?p=4000971&postcount=1101
FAA has specifically said the suction AD is nothing to do with BA038.
I missed this.
Can you provide a link to this statement by the FAA that the AD has nothing to do with BA038?
Thanks.
