Planning For "Tracking Test" By NASA

At NASA's Kennedy Space Center in Florida, crews continue work to repair a plate that attaches a gaseous hydrogen vent line to space shuttle Endeavour's external fuel tank. Hydrogen leaks in the area of the Ground Umbilical Carrier Plate, or GUCP, postponed Endeavour's launch attempts June 13 and 17, delaying its 16-day flight to the International Space Station. Seals in the GUCP were removed overnight and will be shipped to NASA's Marshall Space Flight Center in Huntsville, Ala. today for inspection.

A "tanking test" is planned for Wednesday, July 1, starting at 7 a.m. EDT to ensure repairs were successful. Endeavour's external tank will be filled with liquid hydrogen and liquid oxygen, just as it is before launch. NASA managers will hold a news conference following the test to discuss the results at approximately 1 p.m. The test will be shown live on NASA television.

Endeavour's next launch attempt is targeted for July 11 at 7:39 p.m.

At NASA's Johnson Space Center in Houston, the STS-127 mission astronauts will spend today in the fixed base simulator brushing up on procedures for their first spacewalk. They'll also rehearse the installation of the Japanese Experiment Facility platform that will be attached as the "porch" for the Kibo science laboratory on Flight Day 4 of the mission.