spacetoday.net: Payload problem could delay shuttle mission

Posted: Sat, Jan 9, 2010, 7:34 AM ET (1234 GMT)

A problem with a module destined for the International Space Station could delay next month's schedule launch of the space shuttle Endeavour. The shuttle is set to launch on February 7 on mission STS-130 to deliver the Tranquility docking node to the station. However, during routine ground tests, tubing like that installed in Tranquility to circulate ammonia coolant ruptured at lower-than-expected pressures. Managers are looking into the problem to determine if any repair or replacement of the coolant loops in the module are needed. Some reports indicated that, in a worst-case scenario, Endeavour's launch could be delayed until after the next mission, scheduled for mid-March, although others reported that such a delay has been ruled out by shuttle managers.