First EVA for ammonia coolant loop complete

Astronauts Rick Mastracchio and Mike Hopkins completed the first stage of the coolant loop repair on the ISS, removing the ammonia pump containing the faulty valve.  They were only meant to disconnect the pump on this spacewalk, leaving the actual physical removal for the next spacewalk, but everything went so well that they were able to take care of that as well on this spacewalk.  Watch edited highlights of the 5 hour 30 minute spacewalk here:

The two men will make a second excursion on Monday to install a spare unit currently stored on the truss, and if everything goes as well on Monday as today’s spacewalk went, they may be able to delete the Christmas Day contingency spacewalk.

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