Date: April 6th 2007

04 06 07

George Diller Kennedy Space Center, Fla 321-867-2468

STATUS REPORT: S-040607

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 If you are a member of the media and would like further information, visit:
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Mission: STS-117 - 21st International Space Station Flight (13A) - S3/S4 Truss Segment Solar Arrays Vehicle: Atlantis (OV-104) Location: Vehicle Assembly Building Launch Date: Targeted for no earlier than May 2007 Launch Pad: 39A Crew: Sturckow, Archambault, Reilly, Swanson, Forrester and Olivas Inclination/Orbit Altitude: 51 6 degrees/122 nautical miles

In high bay No 1 of the Vehicle Assembly Building, work is under way to assess and repair hail damage to the STS-117 external fuel tank, ET-124 Special scaffolding and access platforms have been erected to allow access inspections and repairs Foam repairs on the liquid hydrogen tank, which is located on the bottom of the ET, are complete, and the focus is currently on repairs to the liquid oxygen tank

Shuttle Program managers will meet on April 10 to decide whether to use ET-124 or substitute a new tank, ET-117, which arrived at KSC today

Shuttle Program managers decided this week to inspect the main propulsion systems on Atlantis and Endeavour for contamination after a small amount of material was found during routine post-flight inspections in one engine that flew on the STS-116 mission of Discovery in December 2006 and one engine that flew on the STS-121 mission of Discovery in July 2006 The contaminant is a substance called RepliSet, which is a material used to make a mold of the flow liner surface It is used to check for cracks and imperfections The inspections can be accomplished within the timeframe of the hail damage recovery effort, with no impact to the launch schedule for STS-117

Mission: STS-118 - 22nd International Space Station Flight (13A 1) - S5 Truss Segment Vehicle: Endeavour (OV-105) Location: Orbiter Processing Facility Bay 2 Launch Date: Targeted for June 28, 2007 Launch Pad: 39A Crew: Kelly, Hobaugh, Williams, Morgan, Mastracchio, Caldwell and Anderson Inclination/Orbit Altitude: 51 6 degrees/122 nautical miles

Endeavour remains in Orbiter Processing Facility bay 2, and technicians continue preparing the vehicle for its first launch in more than four years The vehicle has undergone an extensive modification period, including the addition of all of the return-to-flight safety upgrades added to both Discovery and Atlantis

This week, the orbiter boom sensor system (OBSS) was installed in the vehicle The OBSS is a 50-foot extension for the shuttle's robotic arm Closeout of the payload bay compartments is under way The wing leading edge instrumentation system flight batteries were installed, and the space-to-space orbiter radio system checks are complete and good Preparations are under way for removal of Endeavour's three main engines for contaminant inspection

Mission: STS-122 - 24th International Space Station Flight (1E) - Columbus Laboratory Vehicle: Discovery (OV-103) Location: Orbiter Processing Facility Bay 3 Launch Date: Targeted for Fall 2007 Launch Pad: 39A Crew: Frick, Poindexter, Walheim, Love, Melvin, Schlegel and Eyharts Inclination/Orbit Altitude: 51 6 degrees/122 nautical miles

Processing of Discovery, which returned from the STS-116 mission on Dec 22, continues in Orbiter Processing Facility bay 3

The orbiter's thermal protection system waterproofing is 90 percent complete Leak checks on fuel cells No 1 and 3 are complete and good Servicing of the water spray boiler system began this week, and fuel cell coolant servicing continues Wire tray closeouts in the mid-body are ongoing, and cargo bay closeouts are under way

-end-

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