Date: May 24th 2006

05 24 06

Jessica Rye Kennedy Space Center, Fla (321) 867-2468

STATUS REPORT: S-052406

NASA'S SPACE SHUTTLE PROCESSING STATUS REPORT

Note: NASA's Kennedy Space Center issues Space Shuttle Processing Status Reports periodically and is the source for information regarding processing activities associated with the vehicles and payloads This report does not necessarily reflect the chronological order of future space shuttle missions If you are a member of the media and would like further information, visit: http://www nasa gov/centers/kennedy/news/index html

Mission: STS-121 - 18th International Space Station Flight (ULF1 1) - Multi-Purpose Logistics Module Vehicle: Discovery (OV-103) Location: Launch Pad 39B Launch Date: Launch Processing Window July 1-19, 2006 Launch Pad: 39B Crew: Lindsey, Kelly, Sellers, Fossum, Nowak, Wilson and Reiter Inclination/Orbit Altitude: 51 6 degrees/122 nautical miles

Space Shuttle Discovery remains at Launch Pad 39B, and technicians continue performing system testing while the vehicle is powered The external tank camera test was successfully completed, and the lens cap has been reinstalled until launch

Tuesday, the launch team conducted the flight readiness test of the space shuttle main engines, as well as the liquid hydrogen and liquid oxygen system leak checks The test ensures the engine hydraulics are properly working

Technicians also are preparing for the gaseous and liquid hydrogen and oxygen leak checks of the power reactant storage distribution system The distribution system will be loaded with hydrogen and oxygen next week The system provides the fuel for the forward reaction control system and the orbiter maneuvering system pods

The orbiter payload bay doors were opened Tuesday in preparation for the payloads to be installed today The team continues with other activities including the orbiter weather protection system's activation and the completion of validations of the sound suppression and Firex systems

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