Discovery Wraps up Second Tanking Test

May 20, 2005
Discovery Wraps up Second Tanking Test

Technicians at NASA's Kennedy Space Center conducted a new tanking test on Friday, May 20, at Launch Pad 39-B to continue troubleshooting two issues that arose during the tanking test on April 14.

Image: A close up of Discovery and its External Tank at Launch Pad 39-B during the tanking test. Image credit: NASA TV/KSC.

Engineers wanted to evaluate liquid hydrogen sensors in the tank that gave intermittent readings during last month's test. These sensors serve as fuel gauges to notify the Space Shuttle Main Engines to shut down when propellants reach a certain level in the tank. This is critical in the safe operation of the main engines.

They also wanted a second look at a liquid hydrogen pressurization relief valve that cycled more times during the first tanking test than is standard. This valve opens and closes to ensure the liquid hydrogen stays at the correct temperature.

Technicians are preparing to roll Discovery to the Vehicle Assembly Building (VAB) on May 24. Discovery will be detached from its ET and lowered into the transfer aisle. On or about June 7, Discovery will be lifted and attached to its new ET and Solid Rocket Boosters. It will roll back out to the launch pad in mid-June.

Source: NASA

Explore further: NASA issues 'remastered' view of Jupiter's moon Europa

add to favorites email to friend print save as pdf

Related Stories

Mutating virus suppresses cow's immune response

Sep 04, 2014

Bovine viral diarrhea virus infections result in one of the most costly diseases among cattle with losses in U.S. herds estimated at $2 billion per year, according to professor Christopher Chase of the South ...

Discovery Set for Tanking Test on Friday

May 19, 2005

On Friday, technicians at NASA's Kennedy Space Center will conduct a new tanking test at Launch Pad 39 to continue troubleshooting two issues that arose during the tanking test on April 14.

Second Discovery tanking test

May 08, 2005

Following Space Shuttle Program management discussions this week, a plan was laid out today reflecting how the program will move toward the STS-114 Return to Flight launch. Preparations are under way for a tanking test no ...

Seeds keep vital much longer when stored without oxygen

Jul 28, 2014

If seed breeding companies, gene banks and the Svalbard Global Seed Vault on Spitsbergen should store plant seeds under oxygen-poor conditions, it would be possible to store them for much longer while still ...

Recommended for you

NASA issues 'remastered' view of Jupiter's moon Europa

Nov 21, 2014

(Phys.org) —Scientists have produced a new version of what is perhaps NASA's best view of Jupiter's ice-covered moon, Europa. The mosaic of color images was obtained in the late 1990s by NASA's Galileo ...

European space plane set for February launch

Nov 21, 2014

Europe's first-ever "space plane" will be launched on February 11 next year, rocket firm Arianespace said Friday after a three-month delay to fine-tune the mission flight plan.

Space station rarity: Two women on long-term crew

Nov 21, 2014

For the 21st-century spacewoman, gender is a subject often best ignored. After years of training for their first space mission, the last thing Samantha Cristoforetti and Elana Serova want to dwell on is the ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.