Single point fueling. No caps. Just check valve vents. Occasionally one sticks open a little bit and fuel splashes out on turns when taxiing. Not a big deal.
Maybe OK on a SR-71, but fuel leaking on a passenger plane is not a Good Thing.
4 posted on 06/15/2017 2:01:03 AM PDT by Paladin2
(No spelchk nor wrong word auto substition on mobile dev. Please be intelligent and deal with it....)