SPACE SHUTTLE PROCESSING STATUS REPORT S-060706

06.07.06

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

STATUS REPORT: S-060706

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

On Tuesday at the launch pad, Space Shuttle Discovery was powered up
for technicians to perform the integrated testing of the
multi-purpose logistics module Leonardo, scheduled to fly in the
vehicle’s payload bay to the International Space Station.

During testing, a problem was detected in left-hand solid rocket
booster bus B, which is a power distribution circuit that delivers
electrical power from the orbiter to the booster. This caused the
system to switch to the backup circuit, bus C. Engineers have
determined the integrated electronics assembly failed and needed to
be replaced.

Late this week, workers will begin loading the hypergolic fuel into
the solid rocket booster hydraulic power units.

External Tank

The external tank scheduled to fly with Atlantis on mission STS-115
departed the Michoud Assembly Facility in New Orleans on Monday.
Liberty Star, the solid rocket booster retrieval ship towing the
tank, is scheduled to arrive at Port Canaveral on Friday.

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