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NASA ANNOUNCES A NEW LAUNCH DATE



NASANews@hq.nasa.gov wrote:

>Melissa Mathews
>Headquarters, Washington                    July 20, 2005
>(Phone: 202/358-1272)
>
>Jessica Rye
>Kennedy Space Center, Fla.
>(Phone: 321/867-2468)
>
>RELEASE: 05-194
>
>NASA MOVING TOWARD TUESDAY LAUNCH ATTEMPT FOR SHUTTLE DISCOVERY
>
>     With some work still to go, NASA is moving toward a new 
>launch attempt for the Space Shuttle Discovery Tuesday, July 
>26, at 10:39 a.m. EDT. Engineers are wrapping up a 
>troubleshooting plan to address a fuel sensor system issue that 
>caused Space Shuttle managers to scrub the first launch attempt 
>for the Return to Flight mission, STS-114.
>
>At a meeting today of the Mission Management Team, Shuttle 
>managers decided on a plan to complete outstanding work on the 
>External Tank's liquid hydrogen low-level fuel sensor system 
>circuit that runs from the External Tank into the Orbiter.The 
>plan outlines a series of steps that could culminate in a 
>launch next Tuesday. First, engineers will complete tests to 
>look at electromagnetic interference as a factor in the sensor 
>system circuit malfunction. Then, workers will swap circuits 
>for two of the sensors to provide a means to isolate the 
>problem to the wiring or the point sensor box, should the 
>problem recur during the countdown.Next, engineers will shore 
>up the electrical grounding to reduce further the chance of 
>electromagnetic interference with the sensor system. 
>
>For a Tuesday launch, the official launch countdown for 
>Discovery will begin Saturday. During the countdown, engineers 
>will closely watch the behavior of the sensor system circuit as 
>the tank is filled with super-cooled propellants.
>
>Including the first launch attempt on Tuesday, there are at 
>least four opportunities for Discovery to launch during the 
>current launch window, which extends until July 31. NASA 
>managers are also looking at the possibility of additional 
>launch opportunities in the first week of August.
>
>For the latest information on the Space Shuttle's Return to 
>Flight, visit: 
>
>http://www.nasa.gov/returntoflight
>
>-end-
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