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ISS STATUS REPORT #04-32



Submitted by Arthur - N1ORC - Amsat #31468

*International Space Station Status Report #04-32*
*8 p.m. CDT Thursday, June 24, 2004*
*Expedition 9 Crew*

A spacewalk intended to replace a faulty circuit breaker on the exterior 
of the International Space Station was cut short when the primary oxygen 
bottle on Astronaut Mike Finckeís Russian space suit began losing 
pressure faster than expected.

The overall pressure in Fincke's suit remained stable at all times and 
he was not in danger. A backup oxygen tank available on his suit was not 
needed.

Fincke and Expedition 9 Commander Gennady Padalka opened the Pirs 
docking compartment hatch at 4:56 p.m. CDT. Immediately after Fincke 
floated out of the airlock, flight controllers in Moscow saw readings 
that indicated the primary oxygen bottle on Finckeís suit was losing 
pressure.

The two spacewalkers returned to the airlock and closed the hatch about 
14 minutes later. After conducting preliminary troubleshooting 
activities, Padalka and Fincke were asked to remove the Orlan-M 
spacesuits and assist with troubleshooting of Finckeís suit. Russian 
flight controllers could not immediately determine the cause of the 
malfunction.

Fincke and Padalka then climbed out of the suits, returned to the 
Station's living quarters and began working with ground controllers to 
reconfigure the Stationís systems for normal operations. The duration of 
Fincke and Padalka's spacewalk was 14 minutes, 22 seconds.

Mission managers in Houston and Moscow agreed to conduct further 
evaluation of the problem before setting a new target date for the 
spacewalk. The earliest the spacewalk could now be performed is June 29 
based on Russian ground communications coverage.

Fincke told Mission Control in Houston that he was pleased flight 
controllers in Moscow had discovered the oxygen tank problem so quickly, 
and thanked both control teams for their efforts. He indicated the crew 
would sleep late tomorrow, and then resume their regular sleep schedule 
until it was time to prepare for another spacewalk.

The spacewalk's goal is to replace a Remote Power Controller Module 
(RPCM) which houses a faulty circuit breaker, through which power is 
routed to one of the Control Moment Gyroscopes (CMGs).

There are four CMGs in the Station's Z1 truss. They control the 
orientation of the ISS in space. CMG 1 failed about two years ago, and 
will be replaced during the next Shuttle mission. CMG 2 was taken off 
line by the April 21 failure of the circuit breaker and should be 
restored by the RPCM's replacement. Meanwhile, two functioning CMGs 
adequately control the station's attitude.

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-


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