NASA expects at least two more spacewalks will be needed to replace a failed ammonia coolant systemt pump after challenges during today's first spacewalk. "We probably will need an additional (spacewalk)," said Courtenay McMillan, the lead flight director for the spacewalks.
NASA had hoped to complete the job with two spacewalks, but managers must now re-plan schedules after analysis of today's trouble disconnecting a leaky ammonia line.
The second spacewalk is planned no earlier than Wednesday. That timing, as well as the date for a likely third spacewalk, is under review.
"It's disappointing that we didn't get further along in the plan, but the system is stable and the team is ready to take on the challenge of rescheduling the (spacewalks) and getting back out there to complete the job," said Mike Suffredini, space station program manager.
IMAGE: Lead spacewalk officer Dave Beaver discussed problems during today's spacewalk with a quick disconnect valve on an ammonia fluid line.
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