[net.columbia] Loose Insulation

alb@alice.UUCP (Adam L. Buchsbaum) (07/02/84)

Engineers today discovered loose insulation on a fuel line
in Discovery's Number 3 Engine while they were removing it
for replacement.  The loose insulation may have allowed nitrogen,
used to purge the engine, to come into contact with the
super-cold hydrogen fuel, liquify, and clog the valve that didn't
open.