NASA managers have
scheduled the next launch attempt of space shuttle Endeavour's
STS-127 mission for 5:40 a.m. EDT on Wednesday, June 17.
Endeavour's planned June 13 liftoff was postponed because of a leak
associated with the gaseous hydrogen venting system outside the
shuttle's external fuel tank. The system is used to carry excess
hydrogen safely away from the launch pad. That repair has been
As a result, the Lunar Reconnaissance Orbiter, or LRO, and Lunar
Crater Observation and Sensing Satellite, or LCROSS, are set to
lift off together aboard an Atlas V rocket on Thursday, June 18.
That launch pushed back a day to accommodate Endeavour's June 17
The leak postponed Endeavour's Saturday morning scheduled launch
to the International Space Station. Teams on Kennedy's Launch Pad
39A have changed out internal seals in the Ground Umbilical Carrier
Plate, or GUCP, which is attached to the external tank. The vent
line runs from the GUCP, away from the launch pad to a "flare
stack" where excess hydrogen is safely burned off.
Endeavour's leak was similar to what happened during the first
launch attempt of space shuttle Discovery's STS-119 mission in
March. Technicians are using the same repair method, which led to
Discovery's successful launch on its next attempt