>> and right now they're about to start a discussion on observing some damage. exactly where that is, but will require some discussion by the engineering team. [no sound] >> i need cor to give us a panel rating for pressure. >> cabin pressure is 15.0.

>> copy. >> we have not seen the pressure increase. >> i think they are still getting their equipment set up right now. >> yeah, we figured that. [no sound]

>> we're about to start cabin pressurization. >> giacobbe? >> cd-r, copy. [no sound] [no sound]

[no sound] th [no sound] >> and the pile they're looking at is around the crew hatch, appears to be an area that may have had a tile repaired at one time.

and that's -- for measuring the tile where that damage is being observed. [no sound] [no sound]

>> two of the closer crewmembers are going down to their truck and we'll come back with a tile repair kit and attempt to do a repair on the tile. see the red morale ribbons at the close outgrew is wearing. those are our go into ever ribbons. -- those are our go endeavour ribbons. they will document the damage and then put in some tile repair

material in there, some slurry, and hopefully close that out. [no sound] [no sound]

a. >> it appears that that piece of repair simply came out in one chunk. so they're going to attempt to repair that before the white room crew leaves.

[no sound] [no sound] [no sound] >> meanwhile, all the other countdown activities will continue on schedule. the tracking station here at kennedy will be going from low power to high power.

[no sound] [no sound] [no sound]

[no sound] [no sound] >> and it appears the tile repair is going fine.

and there is the tile with the repair complete. [no sounds] >> they may shame that up --

shim that up of it. they are looking for any contact. so far that repair appears to have gone just fine. and confirmation, tracking station is now at high power. the booster test conductor has been asked to confer the chamber pressure in the solid rocket boosters. these transistors measure the pressure in the thrust changer at the novel, and information used to tell the computer when two separate the solid rocket boosters in flight.

right as a safety precaution, the retrieval ships are being moved back from the splashdown area to their support point which is about seven-10 miles away from the actual point of impact. this is done as a precaution.

[no sounds] [no sounds] [no sounds] >> they are going to continue

with the hatch closure operations. pressure checks. everybody is getting comfortable in the tower up here. quick check of the overseas landing site so that we will still be using spain as our primary site, and we still have an alternate site.

[no sounds] [no sounds] >> astronaut rick is about to take off in the shuttle training aircraft to assess the weather at the shuttle landing facility and evaluate the handling characteristics should there be a return to launch site necessary. so he will be shooting approaches to the runway and

judging the visibility and the wind conditions, and also looking at the clouds in the immediate area. >> we did find some damage when we removed that. one of the tiles, very small damage. >> and we continue to release the customary weather balloons. the last 24 hours that are up to 24 weather balloons of different types that are released to the evaluate the weather.

some of those give a complete picture of the upper atmosphere, including temperature, humidity, wind speed and parametric pressure up to 100,000 feet. and then there are also six others release which provide high the act of data on the wind speed and direction, up to about 6000 feet. and that helps to determine the final flight profile that would be loaded aboard endeavour.

[no sounds] >> based on that data we're about to select the optimum flight profile for endeavour. [no sounds]

[no sounds] [no sounds] [no sounds]

[no sounds] a [no sounds] a [no sounds] [no sounds]

[no sounds] [no sounds] [no sounds]

[no sounds] >> and the nasa test director is being updated on the nominal launch times and the targeted t. zero is going to be seven, 56, 28. we can see the sound suppression water system, water tank, that's usually when it is hot off -- topped off. coming from a balcony at the top

of the tank. and that tank is empty to about 16 seconds before launch as it puts a cushion of water on the mobile launcher platform. >> ground launcher sequencer ordered to be online and ready to support the final nine minutes of the countdown.

>> doing a little training on our left side as well and it looks like it's possible. >> it may occur like right around 30 minutes before launch. >> not out at this point. >> it may be the same thing happened last time and balance the pressure? >> no. we would basically have the same situation where i have a waiver -- >> the shuttle stack as we see there is 184 feet tall. as we said, it weighs 4,554,863 pounds.

[no sounds] [no sounds]

[no sounds] [no sounds]

>> [no sounds] [no sounds] >> are you ready to close out the white room now? >> almost. >> can you give us a feel in on

888? >> zero decimals, 002. >> are you ready for 889? >> that's a firm. >> if you get a master alarm on the next step, reset it.

>> cabin vent complete. >> if we exceed -- >> copy. >> we are complete at this time and i'd like to start white room breakdown. >> you have go on close out.

>> so that go has been given to go ahead and break down the white room. they are finished and ready to leave the pad. they're the only personnel remaining out there right now. everyone else has been cleared from the blast danger area. [no sounds]

[no sounds] [no sounds] [no sounds]

[no sounds] >> step 816 is complete and the fill-in for the 20 minute hold is at the height of 10 minutes zero seconds.

and four t. minus nine minutes, 39 minutes 43 seconds. and for preferred it is for zero minutes, 28 seconds. and we have completed 818. >> thank you. >> transfer preps for your checklist you. >> copy.

>> 952 -- i'm sorry, 951, final close out the. >> copy that. thank you. >> this is shuttle launch control and t. minus 30 minutes and counting. >> copy that. >> weather officer has been briefing the director about clouds in the area but we are still green.

the cloud layer is expected to scatter out within a half an hour of launch time, writing in the event right now we are observed green. >> i will give you elevators on direct seven. >> standby.

>> step 915 is verified. >> copy that. 953, you have worked all those steps? >> yes, sir. >> great job, travis. >> close that crew has been cleared to leave the white room and head back to the launch control center.

[no sounds] [no sounds] >> i can give you step 944, and our fill in for steps 945 is 14.58. >> 945 is 14.58. need a cabin press from panel 0181, please. >> okay. water spray boiler supplier activation is complete. >> copy that.

919. >> yes, sir. >> the meter, 15.0 on the crt. >> copy. complete. >> ready for us to close that gap and? >> that's a firm. >> i can give you step 933. complete. >> copy that. thank you. >> 947-950, complete.

>> can you verify 949? >> that's a firm. >> okay. >> looking for 927. >> you have a go on 927. >> copy that. step 932, can you verify? >> i can give you 931, complete, no failures. >> copy that, thank you.

>> two things, one, could you lower your screen findings and second of all, weekend then work momentarily with -- >> copy that. >> standby. >> we are ready. >> endeavor houston for the

entire crew. >> cdr, loud and clear. >> endeavor houston, we read you all loud and clear. the ultimate are on page one-10 is to 9.76. >> that is a good read back, endeavor. the final update is for the throttle bucket. let me know when you are there. >> we need a copy. >> throttle down .96 mock, throttle up one point to one mock. >> copy. >> that is a good read back,

endeavor. this complete your checklist updates. >> step 940 -- >> that is coming momentarily. >> copy that. >> i will give you step 956. >> go. >> step 940 and 942, they can verify complete. >> copy both, thank you. >> i can give you 941. >> thank you, sir.

[no sounds] [no sounds]

>> give you 958. >> yes, sir. complete. >> thanks. >> we are standing by now to go into the hold at t. minus 20 minutes in three, two, one t. minus 20 minutes and holding for 10 minutes. the weather reconnaissance aircraft reports that the cloudiness in the area is beginning to scatter out, as predicted. and by the time we are within a half an hour of launch it should be scattered, but at this time we're still green on whether in any event.

have one more remaining in the countdown at t. minus nine. that will be approximately 40 minutes. >> step 1021 is complete. >> copy that. >> at this time things are fairly quiet once again, and our countdown not too much to discuss. this plan builds in a hold.

again, our targeted t. zero will be 85628. 8:56:28. >> at t. minus 20 minutes that will launch control. >> i can verify that is comple complete. >> personnel air to ground one, verify report only if you have discrepancies, and that is 967.

[no sounds] [no sounds] >> step 1027, start your second pump, please. >> copy that.

>> we should be good to step 1032. >> copy. >> with the exception of 932 hasn't been called in yet. >> copy that.

>> [no sounds] [no sounds] [no sounds] >> i have you loud and clear. >> verify active on 212. >> verifies. >> attention all personnel, conducting t. minus 20 reaching.

we are selected preferred time for lunch today so our launch window is open at 125628 gmt and will close at 13:01:29 gmt. three minutes 49 seconds based on engine performance. any of our launch window our whole times are updated will be provided during t. minus nine minute hold. there are no launch window cutouts today. >> copy.

>> after coupon is 31 seconds on the cutoff is available and raised result in a recycle of the t. minus 20 minutes. that concludes the t. minus 20 minutes briefing. >> attention all personnel, our clock down clock -- countdown clock will resume in two minutes 40 seconds. security council.

[no sounds] [no sounds] >> this is shuttle launch control, we are about one minute 45 seconds am coming out of this hold. next hold will be at t. minus nine minutes.

>> when liftoff occurs the twin solid rocket boosters are burning 11,000 pounds of propellant every second until they are jettisoned two minutes into the flight. at that point they will be about 30 miles in altitude. and after they reach 30 miles and separate from the shuttle,

they continue on upward for about another 70 seconds to about 42 miles before they start their freefall towards the water. coming out of the holding out and in about eight seconds. >> five seconds, four, three, two, one, t. minus 20 minutes and counting. >> they're going to inflate their suits.

>> that's ago. [no sounds] [no sounds] >> step 929 is complete. >> copy.

>> [no sounds] [no sounds] >> step 1061 close up crews. >> safety copies. >> 1062. >> 1063, terminate video. >> and 1064.

[no sounds] [no sounds]