[sarex] EVA 2ND SPACE WALK IN PROGRESS

[Arthur Rowe <azrowe80@xxxxxxxxxxx>]

SUBMITTED BY ARTHUR N1ORC - AMSAT A/C #31468

STS-121 Mission Specialists Piers Sellers and Mike Fossum are conducting 
their second spacewalk during Space Shuttle Discovery’s stay at the 
International Space Station. The excursion, which is scheduled to last 
6.5 hours, began at 8:14 a.m. EDT. This spacewalk has two major 
objectives. One task is the installation of a spare thermal control 
system pump on to the outside of the Quest Airlock.

The second is the replacement of reel assembly for a cable that provides 
power and data to the station’s mobile transporter. The completion of 
this job will enable the mobile transporter to move along the integrated 
truss structure and to be used for future station assembly tasks.

Pilot Mark Kelly is coordinating spacewalk activities and Commander 
Steve Lindsey is monitoring vehicle systems and video setups. Mission 
Specialists Stephanie Wilson and Lisa Nowak are the robotic arm operators.

In other activities, the Expedition 13 crew is loading the Leonardo 
multi-purpose logistics module with scientific experiment results, 
unneeded items and trash from the station. Leonardo will return to 
Discovery’s payload bay Friday in preparation for the return to Earth.

+ NASA TV | + STS-121 Shuttle Mission TV Schedule
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