Date: February 14th 2007

Feb 14, 2007

Katherine Trinidad Headquarters, Washington 202-358-3749

James Hartsfield Johnson Space Center, Houston 281-483-5111

MEDIA ADVISORY: M07-22

NASA SETS BRIEFING TO PREVIEW STATION SPACEWALK

HOUSTON - NASA will hold a briefing at 1 p m CST Friday, Feb 16 to preview the fourth spacewalk this month by the residents of the International Space Station The spacewalk is set to begin at 4 a m CST Feb 22

The Feb 16 briefing will originate from NASA's Johnson Space Center, Houston, and will include questions from journalists at participating NASA locations Reporters should call their preferred field center to confirm participation availability

Participants in the briefing will include: - Rick LaBrode, International Space Station spacewalk flight director - Glenda Laws, lead spacewalk officer for Expedition 14

For the spacewalk, Expedition 14 Commander Michael Lopez Alegria and Flight Engineer Mikhail Tyurin will venture outside the station wearing Russian spacesuits for six hours They will retract a stuck antenna on a cargo craft that is docked at the rear of the complex The navigation antenna did not retract properly when the ISS Progress 23 cargo craft docked to the station in October The antenna needs to be retracted before the cargo craft is undocked from the complex in April Lopez-Alegria and Tyurin also will inspect systems to be used by a new European Automated Transfer Vehicle cargo craft that is due to fly to the station this summer During the spacewalk, Expedition 14 Flight Engineer Suni Williams will assist from inside the station

Coverage of the Feb 22 spacewalk on NASA Television will begin at 3 a m CST For NASA TV downlink, schedules and streaming video information on the Web, visit:

http://www nasa gov/ntv

For more about the crew's activities and station sighting opportunities on the Web, visit:

http://www nasa gov/station

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