NASA Conducts Shuttle Fueling Test
Posted on: Monday, 23 May 2005, 15:00 CDT
CAPE CANAVERAL, Fla. - NASA conducted a second fueling test Friday on space shuttle Discovery to try to figure out why sensors and valves did not work properly during a previous run-through.
The test was in preparation for the launch of Discovery in July on the first shuttle flight since the Columbia disaster nearly 2 1/ 2 years ago.
Discovery's external tank was filled with 500,000 gallons of liquid hydrogen and oxygen, and a countdown was simulated.
Everything went without a hitch this time, but NASA engineers evaluating the preliminary data were still unsure why the liquid hydrogen sensors gave intermittent readings and why a pressurization relief valve opened and closed more times than normal during last month's test.
Source: Record, The; Bergen County, N.J.
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