
STS-96 -- 2nd U.S. INTERNATIONAL SPACE STATION FLIGHTNOTE: Over the weekend, workers completed leak checks on Discovery's hydraulic power system and crew cabin. Water spray boiler servicing is under way and checks of the integrated vehicle health monitoring system continue. Orbiter aft and midbody compartment close-outs are in progress. External tank and solid rocket booster close-outs are ongoing in the Vehicle Assembly Building. Later this week, workers will vent the external fuel tank's thermal foam by drilling small holes in the foam. This effort will help reduce the amount of orbiter-damaging foam debris generated during ascent.
STS-96 SCHEDULED OPERATIONAL MILESTONES (dates are target only):
STS-93 -- Chandra X-ray Observatory (formerly AXAF)
NOTE: Columbia is jacked and leveled in Vehicle Assembly Building high bay 2 undergoing system observation during a temporary storage period. Columbia will remain in the VAB until mid-April, when Shuttle Discovery rolls out of Orbiter Processing Facility bay 1. Columbia will then be transferred to OPF bay 1 to complete STS-93's orbiter prelaunch preparations.
STS-99 -- SHUTTLE RADAR TOPOGRAPHY MISSION (SRTM)NOTE: Preparations to replace Endeavour's left orbital maneuvering system engine are complete and removal efforts begin today. Fuel cells No. 1 and No. 2 are being replaced this week as well. Valve modifications on freon coolant loop No. 1 continue and water spray boiler checks are under way.
STS-101 -- 3rd INTERNATIONAL SPACE STATION FLIGHTNOTE: Atlantis' main propulsion system is undergoing leak and functional tests this week. The oxygen tank for the orbiter's power reactant storage and distribution system has been removed to accommodate the replacement of an attach bolt. The tank will be reinstalled tomorrow. Later this week, workers will remove the external airlock to gain additional orbiter access.
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