Joshua Buck
Headquarters, Washington
202-358-1100
jbuck@nasa.gov
Kelly Humphries
Johnson Space Center, Houston
281-483-5111
kelly.o.humphries@nasa.gov
WASHINGTON -- In the wake of an
unsuccessful attempt to install a replacement power-switching unit on the truss
of the International Space Station, two crew members will venture outside for a
second time in six days to complete the work. NASA Television will provide live
coverage of the spacewalk beginning at 6 a.m. EDT, Wednesday, Sept. 5. The
spacewalk is scheduled to begin about 7:15 a.m.
Expedition 32 flight engineers Sunita
Williams of NASA and Akihiko Hoshide of the Japan Aerospace Exploration Agency
again will don U.S. spacesuits and exit the Quest airlock to complete the
installation of a spare Main Bus Switching Unit (MBSU). The MBSU is a boxy,
236-pound component that relays power from the station's solar arrays to its
systems. An 8- hour, 17-minute spacewalk on Aug. 30 -- the third longest in
history -- ended with the spacewalkers unable to finish bolting the switching
unit into its housing on the truss.
This spacewalk will be the 165th in
support of space station assembly and maintenance, the sixth in Williams'
career and the second for Hoshide. Williams will wear the spacesuit bearing red
stripes. Hoshide will be clad in the spacesuit with no markings.
NASA will conduct a multi-center news
conference following the conclusion of Wednesday's spacewalk. The news
conference will be broadcast on NASA TV and include space station program and
mission operations representatives. News media representatives who would like
to participate by telephone must call the newsroom at NASA's Johnson Space
Center in Houston 15 minutes before the news conference begins. Priority will
be given to journalists participating in person. Questions by phone will be
taken as time permits. Journalists should check the NASA TV schedule Wednesday
for the news conference start time.
For NASA TV streaming video, schedule and
downlink information, visit http://www.nasa.gov/ntv.
For more information about the
International Space Station and its crew, visit http://www.nasa.gov/station.
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