NASA Space Shuttle Processing Status Report 31 May 2006

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

Over the holiday weekend, technicians performed no significant processing work at the launch pad. Connections and leak checks of auxiliary power units No. 1, 2 and 3 are complete.

Thursday morning, workers will begin prelaunch propellant loading of the monomethyl hydrazine and nitrogen tetroxide for the forward reaction control system and the orbital maneuvering system pods. Reaction control system quick disconnect mates and interface leak checks were completed May 26.

Following payload installation into the payload bay last week, the payload bay and payload changeout room doors were closed on Friday.