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Jessica Rye
Kennedy Space Center, Fla.
(321) 867-6185

Space Shuttle Processing Status Report
Note: NASA's Kennedy Space Center issues Space Shuttle Processing Status Reports each week, 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-114 - 17th ISS Flight (LF1) - Multi-Purpose Logistics Module
Vehicle: Discovery (OV-103)
Location: Orbiter Processing Facility Bay 3
Launch Date: Launch Planning Window May 15 - June 3, 2005
Launch Pad: 39B
Crew: Collins, Kelly, Noguchi, Robinson, Thomas, Lawrence and Camarda
Inclination/Orbit Altitude: 51.6 degrees/122 nautical miles

In Orbiter Processing Facility (OPF) bay 3, final processing work continues on Discovery in preparation for its rollover to the Vehicle Assembly Building (VAB) and mating, or attaching, to its Solid Rocket Boosters and External Tank. The rollover milestone is moving to March 27 (previously March 22), due to additional work needed on wiring in the payload bay and on the main and nose landing gear doors. Because work is scheduled to end late that day, rollover could take place the morning of March 28. If the work is completed safely and correctly, the orbiter could be moved to the VAB earlier than March 27.

On orbiter Endeavour, wiring was found in a cable tray in the payload bay that showed the fasteners were causing minor chafing on the tubing surrounding the wires. Boroscope inspections of wire trays on Discovery are complete, and some wires will require additional work. The wire tray covers will be removed and chafe protection will be added. Work on the seal installations and cycle checks on the main and nose landing gear doors is almost complete.

Installation of resupply stowage racks in the Italian-built Multi-Purpose Logistics Module (MPLM), Raffaello was completed on Monday. Installation of the resupply stowage bags continues in preparation for MPLM hatch closure, currently scheduled for mid-April. Installation of a Control Moment Gyro (CMG) onto a Lightweight Multi-Purpose Experiment Support Structure Carrier was completed on March 14. During the mission, a spacewalk will be performed to replace an inoperable CMG.

Mission: STS-121 - 18th ISS Flight (ULF1) - Multi-Purpose Logistics Module
Vehicle: Atlantis (OV-104)
Location: Orbiter Processing Facility Bay 1
Launch Date: Launch Planning Window July 12 - July 31, 2005
Launch Pad: 39B
Crew: Lindsey, Kelly, Sellers, Fossum, Nowak and Wilson
Inclination/Orbit Altitude: 51.6 degrees/122 nautical miles

In OPF bay 1, work continues on Atlantis' Return to Flight mission, designated STS-121, to the International Space Station. Technicians are completing the final work in preparation for engine installation which is scheduled for next week. Main Propulsion System leak and functional electrical checks continue. Electrical checkouts of fuel cells No. 1 and 3 are complete.

Preparations are in work for the installation of the new Orbiter Boom Sensor System (OBSS), which was scheduled to arrive at KSC yesterday. Checkout and installation of the four Manipulator Positioning Mechanisms that will hold Atlantis' OBSS on the starboard side of the payload bay is under way. The 50-foot-long OBSS will attach to the Remote Manipulator System, or Shuttle robotic arm, and is one of the new safety measures for Return to Flight, equipping the orbiter with cameras and laser systems to inspect the Shuttle's Thermal Protection System while in space.

NASA's second redesigned Space Shuttle External Tank, designated for use on mission STS-121, arrived on Tuesday at the Launch Complex 39 Area Turn Basin at Kennedy Space Center. It was offloaded and transported to the VAB and was lifted Wednesday into the checkout cell for final processing. Technicians are beginning preparations for the aft hard-point closeout spray.

Endeavour (OV-105)

Orbiter Endeavour remains in the Florida Space Authority's Reusable Launch Vehicle hangar at Kennedy Space Center. While in the hangar, Endeavour underwent testing to see how orbiters respond to a new radar system that will be used to detect debris during launch. In the OPF, work included modifications to the bay and platform validation. Endeavour will return to OPF bay 2 today.

Previous Space Shuttle processing status reports are available on the Internet at:


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