02.26.04

9 p.m. CST, Thursday, Feb. 26, 2004
Expedition 8 Crew
STATUS REPORT: ISS04-11

INTERNATIONAL SPACE STATION STATUS REPORT #04-11



The residents of the International Space Station today conducted the 
first ever two-man spacewalk without a crewmember inside, but the 
planned five and a half hour-spacewalk to support technology 
experiments and prepare for a future visit from a cargo vehicle was 
cut short by a cooling system problem with one of the two 
crewmembers' Russian Orlan suits.



The spacewalk by Expedition 8 Commander Mike Foale and Flight Engineer 
Alexander Kaleri was proceeding smoothly and problem-free for almost 
three hours until Kaleri reported that drops of water were beginning 
to form inside his helmet visor and that his suit temperature was a 
little warm. Within minutes, Russian flight controllers reported an 
apparent failure of the system that provides cooling for Kaleri's 
suit. Initially, Russian suit specialists surmised that the problem 
existed with the suit's sublimator device, which provides cooling and 
dehumidifying capability and directed the crew to end the spacewalk. 
Despite the problem, Kaleri was never in any danger and suit 
temperatures never rose to uncomfortable levels.



Back inside the Pirs Docking Compartment from which the spacewalk was 
staged, Foale removed his suit after Pirs was repressurized so he 
could conduct an inspection of Kaleri's suit.



Foale quickly detected a kink in one of the tubes in Kaleri's liquid 
cooling garment that provides the flow of water throughout the suit. 
The kink was straightened out and water began to flow once again 
normally in Kaleri's suit.



Earlier today, after configuring systems, closing module hatches and 
buttoning up the Station in the unlikely event a problem would 
prevent them from returning inside, Foale and Kaleri depressurized 
Pirs and opened the hatch to begin their spacewalk at 3:17 p.m. CST 
(2117 GMT). It was the first time the Station had not been occupied 
during a so-called "extravehicular activity". U.S. and Russian 
technical teams had worked for months on procedures to insure the 
safety of the crew and the complex and reviewed all contingencies to 
mitigate possible risks with no one inside to respond to potential 
problems.



All Station systems operated flawlessly in their autonomous 
configuration during the abbreviated spacewalk.



Once outside the Pirs, Foale and Kaleri quickly set up tools and 
tethers to guide them during the spacewalk that was focused on the 
exterior of Zvezda. Their first task was the replacement of a 
cassette container on the Docking Compartment airlock housing sample 
materials for the study of the harsh effect of long-duration exposure 
of those materials to the space environment. Foale replaced one of 
two similar cassettes housed on the outside of Zvezda as the 
spacewalk drew to a premature close.



Foale and Kaleri then removed one of two suitcase-size pallets of 
Japanese experiments from a bracket on Zvezda and moved a similar 
experiment package to that bracket. The Micro-Particle Capturer and 
Space Environment Exposure Devices (MPAC / SEEDS) had been in their 
current location since October 2001 when they were first installed 
outside Zvezda to measure micrometeoroid impacts on material 
specimens.



Moving smartly through their tasks, Foale and Kaleri turned their 
attention to the installation of a Russian experiment called 
"Matryoshka" onto handrails outside Zvezda. The "Matryoshka" is a 
torso-like device housed in a container comprised of material 
simulating human tissue. It is designed to collect data on the 
absorption of radiation by crews living aboard the Station for long 
periods of time.



As Foale and Kaleri completed their work to install the Matryoshka, 
Kaleri reported his suit problem, at around 6 p.m. CST (0000 GMT).



Foale completed the installation of Russian material science 
experiment container on the Zvezda Service Module as Kaleri made his 
way back to Pirs. He and Foale closed the hatch to Pirs at 7:12 p.m. 
CST (0112 GMT) bringing the spacewalk to a close after 3 hours, 55 
minutes.



It was the 52nd spacewalk in support of Station assembly and 
maintenance, the 27th staged from the Station itself, the fourth for 
Foale in his career and Kaleri's fifth.



Once they are back inside the Station's living quarters, the crew will 
reopen all of the hatches and prepare the Station for regular 
operations. Foale and Kaleri are scheduled for several days of 
off-duty time through early next week.



Information on the crew's activities aboard the Space Station, future 
launch dates, as well as Station sighting opportunities from anywhere 
on the Earth, is available on the Internet at:



http://spaceflight.nasa.gov/



Details on Station science operations can be found on an Internet site 
administered by the Payload Operations Center at NASA's Marshall 
Space Flight Center in Huntsville, Ala., at:



http://scipoc.msfc.nasa.gov/



The next ISS status report will be issued as events warrant.

	
-end-