Скачать или смотреть Briefing on massive cooling system failure onboard ISS

(3 Aug 2010) SHOTLIST
Johnson Space Center, Texas - 2 August 2010
1. Mid of news conference
2. SOUNDBITE (English) Mike Suffredini, NASA space station programme manager:
"I'm trying to leave you with the idea that everything the crew needs to survive, they're in good shape. All their systems are active and what we're talking about really, it would be a significant challenge if we suffer the next failure but it's not normal because we can't do normal operations with these power downs and the fact that we need to get on with the EVA (Extra Vehicular Activity)."
3. Graphic showing worksite on the ISS where pump module will be replaced
4. Graphic showing a closer view of where work is going to be done
5. Graphic showing different angle of replacement pump module location
6. STILL of spare pump module
7. SOUNDBITE (English) Mike Suffredini, NASA space station programme manager:
"From a failure standpoint, it's early. On a whole, from the ISS standpoint, we have been much, much, more reliable in our systems than we had expected. While you have design lives for many, many years, when you look at your mean time between failures, you build a sparing philosophy based on your mean time between failures, and life if your design life is less than the design life of the system and so we spared that way, but this is a little bit earlier than we expected on the pump."
8. Mid of news conference
9. SOUNDBITE (English) Mike Suffredini, NASA space station programme manager:
"This is an anomaly we knew someday would happen, it's an anomaly that we have trained for, it's an anomaly that we have planned for. Obviously we've spared for it. We're in a good position to go solve this problem. It is a significant failure, though, in terms of systems on board ISS, so it's one we need to go get after."
Space - 2 August 2010
10. Various STILLS showing the International Space Station (ISS)
FILE: International Space Station - date unknown
11. STILL showing crew aboard the ISS (FROM BOTTOM LEFT, CLOCKWISE: Commander Alexander Skvortsov and Flight Engineers Tracy Caldwell Dyson, Doug Wheelock, Mikhail Kornienko, Fyodor Yurchikhin and Shannon Walker)
STORYLINE
Astronauts in orbit and on the ground practiced on Monday for a major repair job later this week at the International Space Station.
A weekend malfunction knocked out half of the space station's cooling system, forcing the crew of six to turn off unnecessary equipment and halt scientific work to avoid any overheating.
NASA's space station programme manager, Mike Suffredini, ranked the problem as one of the most serious in the 12-year history of the orbiting lab, but stressed the outpost could keep going indefinitely given the current situation.
The fear is that the second cooling loop could shut down at any moment and leave the station in precarious shape.
For now, "everything the crew needs to survive, they're in good shape, all those systems are active," Suffredini told reporters on Monday.
"What we're talking about really, it would be a significant challenge if we suffer the next failure," he said.
Two of the Americans on board - Douglas Wheelock and Tracy Caldwell Dyson - will venture out on a space walk to replace the pump on Thursday.
A second space walk will be needed to finish the job, most likely on Sunday.
The 780-pound (350-kilogram) pump is difficult to handle, and the astronauts will need to guard against any hazardous ammonia leaks.
Engineering teams have been working non-stop since the right-side cooling loop shut down on Saturday night.
A pump that drives ammonia coolant through those lines failed when a circuit breaker tripped.

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