NASA Delays Discovery Launch Indefinitely
Engineering Teams Checking Problem
POSTED: Friday, July 15, 2005
UPDATED: 9:59 am EDT July 16,
2005
CAPE CANAVERAL, Fla. -- NASA said Friday it would not try to launch the space shuttle Discovery until late next week -- at the earliest.
The space agency is backing out of the countdown and has given up trying to make a launch attempt anytime soon, said spokesman Bruce Buckingham.
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Engineers drained the tanks of space shuttle Discovery Friday which means that Sunday's launch attempt is a "no-go," according to Local 6 News partner
Florida Today.NASA's first mission since the 2003 Columbia disaster could be pushed back to September, depending on the work needed, Local 6 News reported.
Hundreds of engineers continued to scramble Friday to figure out why a fuel gauge on space shuttle Discovery failed just before its scheduled liftoff this week.
The tanks that were drained hold liquid hydrogen and liquid oxygen for the shuttle's fuel cell system.
The fuel cell system generates electricity to power all spaceship systems during flight. The tanks are located beneath the lining of the shuttle's 60-foot-long cargo bay.
The Mission Management Team will meet at 3:30 p.m.
Meanwhile, engineers believe the problem could be in the gauge at the bottom of the tank -- an electronic box aboard the shuttle that serves as a data-relay hub -- or in the cables and wires in between.
The fuel gauges are critical and even though only two are needed, all four must be working properly for a launch to proceed.
An official said these low-level fuel gauges never failed until April, when two malfunctioned during a fueling test of Discovery's original tank. That tank was later replaced for other safety reasons.
If the fuel tank was empty but the sensors indicated full, the engine turbines would spin too fast and likely rupture -- possibly damaging the tail of the spacecraft and dooming the crew. A ground test that accidentally caused that to happen back in the early 1980s resulted in severe "uncontained" damage, Hale said. NASA is loath to repeat such a test on the shuttle's new and stronger turbopumps, according to an official.
On the other end of the scale, if the sensors were to trigger a premature shutdown of the main engines on the way to orbit, the shuttle would be forced to attempt a dangerous emergency landing in Europe or elsewhere.
"None of those options are really what you'd like to have happen to you," Hale said.
Watch Local 6 News for more on this story.
Previous Stories: - July 13, 2005: Glitch Forces Discovery Launch Scrub
- July 12, 2005: Funnel Cloud Spotted Near KSC Landing Facility
- July 12, 2005: Family Of Israeli Astronaut Will Not Attend Shuttle Launch
- July 12, 2005: NASA Confident Discovery Will Launch On Schedule
- July 12, 2005: Astronauts Arrive At Launch Site, Beating Hurricane
- July 11, 2005: Countdown Begins For Shuttle's Return To Space
- July 10, 2005: NASA To Keep Discovery On Launch Pad
- July 9, 2005: Space Coast Looks For Economic Boost From Shuttle Launch
- July 7, 2005: Shuttle Discovery Set To Launch July 13
- July 7, 2005: NASA Monitors Terror Attacks, Hurricane As Shuttle Launch Date Nears
- July 4, 2005: 107 Cameras To Watch Shuttle Discovery's Launch
- June 30, 2005: Shuttle Discovery Facts
- June 28, 2005: NASA Chief: Shuttle Is Ready To Go
- June 13, 2005: Discovery Being Prepared To Roll To Launch Pad
- June 9, 2005: Shuttle Rollout Slips To Tuesday
- June 6, 2005: Discovery Set To Get New Fuel Tank
- June 2, 2005: NASA Fuels Shuttle For First Time In More Than 2 Years
- June 2, 2005: Astronauts Wrap Up Shuttle Test
- May 2, 2005: Astronauts Arrive AT KSC For Rehearsal
- April 29, 2005: NASA Makes Shuttle Launch Delay Official
- April 21, 2005: NASA Delays Discovery Launch Until May 22
- April 6, 2005: Despite Crack In Foam, Shuttle Rolls Toward Pad
- April 6, 2005: Shuttle May Miss Liftoff Date
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