JFZ 90. With all due respect, if you are not careful you are going to disappear up your own jet pipe on this one.
As I read the Mick Smith report, the bottom line is that QinetiQ declared the Nimrod fuel system "Tolerable but not ALARP"; and that is Not Safe. QED
Any one who tries to claim that it is safe is misleading aircrews and the general public.
DV