[sci.space.shuttle] Shuttle Status for 05/25/90

yee@trident.arc.nasa.gov (Peter E. Yee) (05/25/90)

                KSC SHUTTLE STATUS - FRIDAY, MAY 25, 1990 - 10:30 AM

                        STS-35 - COLUMBIA (OV 102) - PAD 39-A

                Closeouts of Columbia's aft compartment were completed with
          installation of the flight doors shortly after 6 p.m. last night.
          A purge of the power reactant  storage  and  distribution  system
          also was completed yesterday.

               Closeouts  of  the Astro-1 payload have been completed.  The
          Broad Band X-ray Telescope will be serviced with argon on  Satur-
          day  night.  After  the servicing has been completed,  Columbia's
          payload bay doors will be closed for flight.

               Preparations to complete final vehicle ordnance  operations,
          including tests of the firing circuits are underway today. At the
          start of second shift,  at about 4 p.m.,  the pad will be cleared
          for the ordnance activities.  Launch countdown  preparations  are
          underway.

               A  May 30 launch date for STS-35 was selected by the Mission
          Management Team yesterday.  The launch countdown clock is set  to
          begin at 1 a.m.  EDT Sunday, May 27, at the T minus 43 hour mark.
          The seven-member  flight crew is scheduled to arrive at KSC  Sun-
          day at 11 a.m. EDT.

                       STS-38 - ATLANTIS (OV 104) - OPF BAY 2

               Payload bay cleaning operations were completed yesterday and
          the doors have been closed.  Thermal protection system operations
          are continuing  this  week.  Connections  of  the  right  orbital
          maneuvering  system  pod  are  being made and a bent pin has been
          repaired  at a thermal switch.  Technicians are busy closing  out
          the aft engine compartment.  Installation of auxiliary power unit
          number 1 is planned this weekend.

               Rollover to the Vehicle Assembly  Building  is  planned  for
          early June.


                       STS-41 - DISCOVERY (OV 103) - OPF BAY 1

                Rocketdyne  technicians  removed  the  number 2 main engine
          yesterday.  All three main engines will be transferred to the VAB
          engine  shop  for post-flight inspections and for the replacement
          of several components.  The other two engines are scheduled to be
          removed  this  weekend.  The right orbital maneuvering system pod
          was removed early this  morning.  Preparations  are  underway  to
          remove the left pod next week.  The nose cap has been extended to
          allow access for tile work.  Post-flight tests and inspections of
          Discovery's systems are continuing.



                         STS-38 SOLID ROCKET BOOSTERS - VAB

               Technicians  are  continuing  with closeouts of the boosters
          and external tank.



                         STS-40 SOLID ROCKET BOOSTERS - VAB

               Booster stacking operations are continuing  for  the  STS-40
          Spacelab Life Sciences mission.  The right aft booster was bolted
          to the launch platform.  The boosters are being stacked  together
          on mobile launcher platform  2.