[vettejack]

Space Shuttle Endeavour, is scheduled for lift off, from Launch Pad A, at 5:41AM (05:40:47 EDT) (09:40:47 GMT). This is the 29th International Space Station flight, assembly flight 2J/A, Japan's KIBO laboratory JEM EF, ELM-ES and Integrated Cargo Carrier.

Technicians fixed the gaseous hydrogen venting system outside space shuttle Endeavour's external fuel tank. The leak occurred near the Ground Umbilical Carrier Plate, or GUCP, (pictured below) which is attached to the external tank. The vent line leads from the GUCP and away from the launch pad to the "flare stack" where excess hydrogen is safely burned off.