[sci.space.shuttle] Shuttle Status for 12/19/90

yee@trident.arc.nasa.gov (Peter E. Yee) (12/20/90)

             Wednesday December 19, 1990                 10:00 a.m. EST

                     KSC SPACE SHUTTLE PROCESSING STATUS REPORT

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                  STS-35  --  Columbia (OV 102) - Kelly AFB, Texas

               The orbiter Columbia atop its 747 shuttle carrier aircraft
          departed Dryden Flight Research Facility, Calif., yesterday
          morning, stopped for fuel at Biggs Army Air Field, El Paso, Tx.,
          and continued on to Kelly Air Force Base, San Antonio, Tx., for
          an overnight layover. This morning, managers conducted a weather
          assessment and determined that the vehicle should continue its
          journey to the preferred refueling stop at Barksdale Air Force
          Base, Shreveport, La. Continuation of the ferry flight to Kennedy
          Space Center this afternoon will be determined upon arrival at
          Barksdale. A frontal system moving across the Florida panhandle
          may present a problem.

               Arrival at Kennedy Space Center will be no earlier than mid-
          afternoon today and possibly as late as Thursday morning.

               Once back at KSC, Columbia will be demated from the SCA and
          prepared for tow to the Vehicle Assembly Building. About 36 to 48
          hours of operation time is required for safing the vehicle and
          removing the protective main engine tail cone before Columbia can
          be moved to the VAB. About four days of deservicing is required
          to safe the vehicle before ground crews can take time off for the
          holidays.


                     STS-39 -- Discovery (OV 103)  -  OPF Bay 1

               The right hand orbital maneuvering system pod was attached
          to the vehicle last night. Electrical mates are continuing today
          and are scheduled to be completed by Friday. The forward reaction
          control system will be positioned and installed tomorrow evening.
          Nose cap installation is complete. Main engines two and three
          helium purge check valves will be installed today. Tile
          waterproofing and lazer step and gap operations are in work.
          Hydraulic operations to position the aerospace surfaces will be
          conducted prior to power down operations, now scheduled for
          Friday midnight.

               In the Vehicle Assembly Building, the STS-39 external tank
          was lifted to the twin solid rocket boosters. Mating operations
          to attach the ET to the SRBs were completed last night.
          Electrical and mechanical hardmate verification operations will
          continue today.


                      STS-37 -- Atlantis (OV-104)  -  OPF Bay 2

               Modification work to install carbon brakes on the orbiter's
          wheels continue today in bay two of the Orbiter Processing
          Facility. Work should be completed Thursday. Hydraulic operations
          are underway to rotate the elevons and body flap up for normal
          borescope inspection. The payload bay doors are scheduled to be
          closed tomorrow for the holidays.