[net.columbia] Simulated Countdown

alb@alice.UUCP (10/12/83)

NASA crews today took the Columbia through a simulated
countdown after a two hour delay due to a fuel leak.
The test, in which both the oxygen and hydrogen sections
of the external tank were to be filled with super-cold
liquid fuels, was instead carried out with only the oxygen
tank filled with liquid oxygen and the hydrogen tank filled
with gaseous hydrogen; the problem was due to a leak in
a hydrogen fuel line.