Repairing the Station in Orbit
Expedition 35 Flight Engineers Chris Cassidy (pictured) and Tom Marshburn
(out of frame) completed a spacewalk at 2:14 p.m. EDT May 11, 2013 to
inspect and replace a pump controller box on the International Space Station’s
far port truss (P6) leaking ammonia coolant. The two NASA astronauts began
the 5-hour, 30-minute spacewalk at 8:44 a.m.
A leak of ammonia coolant from the area near or at the location of a Pump and
Flow Control Subassembly was detected on Thursday, May 9, prompting
engineers and flight controllers to begin plans to support the spacewalk. The
device contains the mechanical systems that drive the cooling functions for the
port truss.
Image Credit: NASA
(out of frame) completed a spacewalk at 2:14 p.m. EDT May 11, 2013 to
inspect and replace a pump controller box on the International Space Station’s
far port truss (P6) leaking ammonia coolant. The two NASA astronauts began
the 5-hour, 30-minute spacewalk at 8:44 a.m.
A leak of ammonia coolant from the area near or at the location of a Pump and
Flow Control Subassembly was detected on Thursday, May 9, prompting
engineers and flight controllers to begin plans to support the spacewalk. The
device contains the mechanical systems that drive the cooling functions for the
port truss.
Image Credit: NASA
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