yee@trident.arc.nasa.gov (Peter E. Yee) (01/03/91)
Wednesday January 2, 1991 10:00 a.m. EST KSC SPACE SHUTTLE PROCESSING STATUS REPORT ----------------------------------------------------------------- STS-39 -- Discovery (OV 103) - OPF Bay 1 Power up of Discovery's electrical system is scheduled for later this afternoon, followed by the opening of the payload bay doors. The main propulsion system check valves have been installed and a high pressure test on the MPS system is scheduled for later this week. The forward reaction control system was not installed prior to the holidays as scheduled, but will be mated to the vehicle later this week. In the Vehicle Assembly Building, closeouts of the solid rocket boosters, previously mated with the external tank, continue today in high bay 1. STS-37 -- Atlantis (OV-104) - OPF Bay 2 Power up of the vehicle is scheduled for Friday, followed by opening of the payload bay doors. The remote manipulator system, or robot arm, will be installed this weekend. Work to change out the general purpose computers on Atlantis continues this week. Today, auxiliary power unit number 2 will be installed and the APU water valves will be replaced as scheduled. Helium systems checkouts and left hand orbital maneuvering system checkouts will pick up again today. Modification work to install the new carbon brakes on the orbiter's wheels will be finished this week. In the Vehicle Assembly Building, the left aft center solid rocket booster segment will be lifted and mated to the existing segment on the mobile launcher platform in high bay 3. STS-35 -- Columbia (OV 102) - VAB High Bay 2 The orbiter Columbia remains in the Vehicle Assembly Building high bay 2. General purges of the vehicle continue. Access to the orbiter will be made today. Columbia will remain in the VAB until Discovery vacates the Orbiter Processing Facility, around the end of January.