Spannerhead,
Thks for your reply on "the other site".
I thrashed through a pile of Boeing SB´s, and guess what...the fuse (on the ceiling of the ECS bay, btw) can cause this, no reason though, just change the p/n to one with a lower fluid resistance.
I´m comming to "the land of darkness" ´(Luton) in Dec. maybe we can hook up and drink to the good ol´days.
Brgds
Doc