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STS-111 - STATUS REPORT #18



Submitted by Arthur - N1ORC

 
STS-111, Mission Control Center 
Status Report # 18
Thursday, June 13, 2002 Ė 7 p.m. CDT

In a 7-hour, 17-minute spacewalk today, Endeavour astronauts Franklin
Chang-Díaz and Philippe Perrin successfully replaced a wrist roll joint
on the International Space Stationís robotic arm, restoring the arm to
full functionality. 

With Endeavour Pilot Paul Lockhart choreographing the spacewalk from
inside Endeavour, Chang-Díaz and Perrin stepped outside the stationís
Quest airlock at 10:16 a.m. Central time. Commander Ken Cockrell used the
shuttleís robotic arm to provide television views of the spacewalk
activity. 

Chang-Díaz and Perrin first removed the armís latching end effector,
essentially the hand of Canadarm2, and attached it to a handrail on the
stationís Destiny Laboratory. Next they released six bolts connecting the
wrist roll joint to the adjoining yaw joint and an additional bolt
connecting power, data and video umbilicals. Perrin carried the failed
unit to Endeavourís payload bay where it was temporarily stored near the
new joint. 

Perrin released six fasteners to remove the new joint from its launch
carrier in the shuttle cargo bay and brought it up to Canadarm2 where
Chang-Díaz was positioned. After aligning the new component with the
wrist yaw joint at the end of the arm, the duo tightened the six bolts to
secure the new joint to the arm and turned the final bolt to connect the
power, data and video lines. After they reinstalled the latching end
effector, power was turned back on to Canadarm2. The failed joint was
then placed in a flight support structure in the cargo bay for return to
Earth. 

Working at the robotics workstation inside the Destiny Laboratory,
Endeavour Astronaut Dan Bursch and Expedition Five Commander Valery
Korzun conducted a checkout of the health of the arm once the new joint
was installed. At 3:43 p.m. Central time, the arm returned to full
operational status. 

Following an inventory of the tools they used during the spacewalk,
Perrin and Chang-Díaz re-entered Quest. Airlock repressurization began at
5:33 p.m. Central time, signaling the end of the spacewalk. It was the
41st spacewalk in support of ISS assembly and maintenance and the third
of the mission, bringing the total spacewalking time for STS-111 to 19
hours and 31 minutes. 

The next STS-111 status report will be issued Friday morning, or earlier,
if events warrant.

### 

NASA Johnson Space Center Mission Status Reports 

  


 

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