Endeavor Launch Scrubbed

Hydrogen Leak Prevents STS-127 Launch
Wed, 17 Jun 2009 03:03:28 AM CDT

Space shuttle Endeavour's STS-127 launch today was officially scrubbed at 1:55 a.m. EDT when the same type of gaseous hydrogen leak was detected at the Ground Umbilical Carrier Plate, or GUCP. This is the same location where a similar leak resulted in a launch scrub on June 13.

"We're going to step back and figure out what the problem is and go fix it," said Deputy Space Shuttle Program Manager LeRoy Cain during a briefing afterward. "Once we get it fixed and we're confident that we have a solution that's going to work and allow us to go fly safely, then we'll proceed forward."

Teams followed the same repair method as they did for the GUCP leak encountered during the STS-119 countdown. The STS-119 and STS-127 leaks will both be evaluated in order to determine the cause. Data collected during fueling is expected to help the troubleshooting effort.

Endeavour's next launch attempt for its STS-127 mission is targeted for July 11 at 7:39 p.m. EDT.