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STS-133 MISSION MANAGERS GIVE GO-AHEAD FOR THURSDAY LAUNCH
11.0310
 
After investigating an issue with a main engine controller on space shuttle Discovery, the Prelaunch Mission Management Team has decided to go ahead with Discovery's launch from the Kennedy Space Center on Thursday at 3:29 p.m. EDT.  The countdown will proceed through Wednesday night, including the retraction of the Rotating Service Structure from around the shuttle. The team feels weather may still be a concern, with a forecast calling for a 20 percent chance of acceptable conditions near launch time.   Managers will meet on Thursday morning at 5:30 a.m. to consider whether to fill the shuttle’s external tank for the launch. 

TRT: 00:50
Super:  NASA
Mike Moses - Chair, Prelaunch Mission Management Team
Mike Leinbach - Shuttle Launch Director
Center Contact:  Candrea Thomas, 321-867-2497
HQ Contact: Michael Curie, 202-358-1100

Mike Moses - Chair, Prelaunch Mission Management Team

Cut 1 - 00:24 – “Our most probable cause here is that we had contamination on that circuit breaker, that we slowly cleared up by scrubbing it, in fact, after we left last night, after we left the press conference, we scrubbed it five more times.  Those power-up signatures were perfect, just like they have been in the past.  So pretty good proof that we have knocked the contamination off, our history shows us once we do that, that is a solid connection and it’s not going to change.  And therefore, we had pretty good acceptance rationale today to go fly.”
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Mike Leinbach - Shuttle Launch Director

Cut 1 - 00:26 - “We are looking for an opening of the launch window at 15:24 tomorrow afternoon Eastern time.  The teams in great shape, we are ready to execute … I just might add to the mission management team discussion, from my perspective it sounds very, very good the flight rationale is solid.  Scrubbing off circuit breakers is something we do, very, very standard process here at KSC, we have a procedure to do that. So it really truly sounds like we got the culprit and we cleaned it off and we should be good to go.”
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