GUCP Repair Work Concluding

STS127-completingUCPwork

In this photo taken June 24 at NASA’s Kennedy Space Center in Florida, work continues on removing the Ground Umbilical Carrier Plate on space shuttle Endeavour’s external fuel tank. Image credit: NASA/Jack Pfaller

Tue, 30 Jun 2009 03:24:11 PM GMT

Technicians are putting the last touches on the Ground Umbilical Carrier Plate, or GUCP, in preparation for tomorrow’s leak test involving the full tanking of the external tank with super-cold liquid hydrogen and liquid oxygen. The tanking is slated to begin at 7 a.m. EDT Wednesday. Leak checks at an ambient temperature were completed Monday. The GUCP leaked on two prior launch attempts for the STS-127 mission when the cryogenic propellants were loaded into space shuttle Endeavour’s external tank. The Endeavour astronauts are completing administrative work today and will take T-38 training jet flights to El Paso, Texas. Also, technicians removed a stuck work light knob in space shuttle Atlantis that wedged between a window and dashboard during the STS-125mission. Technicians pressurized Atlantis before pulling the knob out, clearing the way for the window to be inspected.

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