Tracy Young
Kennedy Space Center, Fla.
(321) 867-2468



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:

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

Discovery was powered up to support the prelaunch loading this week of
hypergolic propellants into the forward and aft reaction control
system and the orbital maneuvering system pods. Fuel loading for the
orbiter’s auxiliary power units is scheduled for the weekend. Testing
of the reaction jet driver - electrical control system for the
reaction control system jets - was successfully completed. The
loading of hypergolic fuel into the solid rocket booster hydraulic
power units is scheduled for next week. On Monday, the payload bay
doors will be opened for payload testing and sensor installation in
the Orbiter Boom Sensor System.

Mission: STS-115 - 19th International Space Station Flight (12A) -
P3/P4 Solar Arrays
Vehicle: Atlantis (OV-104)
Location: Orbiter Processing Facility Bay 1
Launch Date: No earlier than Aug. 28, 2006
Launch Pad: 39B
Crew: Jett, Ferguson, Tanner, Burbank, MacLean and Stefanyshyn-Piper
Inclination/Orbit Altitude: 51.6 degrees/122 nautical miles

In Orbiter Processing Facility bay 1, Atlantis was powered up this
week to support payload testing. Early in the week, the auxiliary
power controller unit verification testing was successfully
completed. Preparations for installing engine No. 3 are finished,
with installation scheduled for Monday. Engines No. 1 and No. 2
already are in place on the orbiter.

On Thursday, stacking for STS-115 began with the transfer of the right
aft booster segment from the Rotation Processing and Surge Facility
to the Vehicle Assembly Building, where it was lifted into high bay 3
and placed on mobile launcher platform No. 2. The left aft booster
was transported to the Vehicle Assembly Building and lifted into high
bay 3 on Friday.

Endeavour (OV-105)

Powered-up system testing continues on Endeavour in Orbiter Processing
Facility bay 2 following an extensive modification period. Main
propulsion system leak and functional testing continues, and the
potable water leak checks also are ongoing. Technicians are
performing tests and checkouts of the manipulator positioning
mechanisms prior to installing the Orbiter Boom Sensor System. The
manipulator positioning mechanisms are the pedestals that support the
boom inside the payload bay. On Thursday, workers finished installing
hardware in the rudder speed brake, allowing installation of thermal
blankets to begin on the brake. The orbiter’s drag chute was
installed and the drag chute doors will be installed today.