[sci.space.shuttle] Shuttle Status for 05/01/91

yee@trident.arc.nasa.gov (Peter E. Yee) (05/02/91)

          KSC SHUTTLE STATUS REPORT - WEDNESDAY, MAY 1, 1991 - 10:30 AM

                   STS-39/DoD - DISCOVERY (OV 103) - FLIGHT DAY 4

               Hydrolasing operations are underway at Hangar  AF  today  to
          remove thermal protective foam and cork from the boosters. Disas-
          sembly operations are scheduled to take about 10 days.

               Discovery  is  scheduled  to  land  on Monday,  May 6 at ap-
          proximately 2:57 p.m. EDT at Edwards Air Force Base, Calif.

              STS-40/SPACELAB LIFE SCIENCES 1 - COLUMBIA (OV 102) - VAB
                                     LAUNCH - MAY

          WORK IN PROGRESS:
          - Preparations to roll out  to  Launch  Pad  39-B.  First  motion
          planned for one minute after midnight.
          - Retraction of platforms away from the vehicle.
          - Crawler transporter preparations for tonight's rollout.

          WORK COMPLETED:
          -  Shuttle  Interface Test to verify critical connections between
          the vehicle elements and the launch platform.
          - Installation of the external tank separation camera.

          WORK SCHEDULED:
          - Launch pad validations.
          - Hot fire of one auxiliary power unit tomorrow night.
          - Extend Rotating Service Structure at about 4 a.m. Friday.
          - Helium signature leak test of the main  propulsion  system  and
          three Shuttle main engines this weekend.
          - Main engine flight readiness test this weekend.
          - Terminal Countdown Demonstration Test set for May 6-7.
          - Flight Readiness Review planned May 13-14.

                       STS-43 - ATLANTIS (OV 104) - OPF BAY 2

          WORK IN PROGRESS:
          -  Preparations to drain residual hypergolic propellants from the
          onboard storage tanks.
          - Stacking of the second booster segment, the left aft center, in
          the VAB.
          - Routine inspections of the 17-inch disconnect.
          - Installation of a fourth power reactant storage  and  distribu-
          tion system tank set.
          - Draining residuals from the auxiliary power unit catch bottles.
          -  Preparations  to  replace  a  thruster  on  the  right orbital
          maneuvering system pod.
          - Replacing vent filters in the orbiter's midbody.

          WORK COMPLETED:
          - Removal of the three Shuttle main engines.
          - Sniff checks of the orbital maneuvering system motor valves.



                        ENDEAVOUR (OV 105) - PALMDALE, CALIF.

               Endeavour is being prepared for delivery to KSC  this  week.
          Today, the new orbiter is being mated to the new 747 Shuttle Car-
          rier Aircraft using the Orbiter Lifting Frame.

               The  first  leg  of  the  cross  country ferry flight,  from
          California to Texas,  is scheduled to begin tomorrow morning.   A
          refueling  and    overnight stop is planned at Ellington Field in
          Houston, Texas. The journey, from Texas to Florida, will continue
          Friday.  Pending favorable weather  conditions,  Endeavour's  es-
          timated time of arrival at KSC is midday Friday.

               Once  demated  from the 747,  Endeavour will be towed to the
          Orbiter Processing Facility where the tail cone, ferry flight kit
          items,  the two simulated orbital maneuvering  system  pods,  and
          mock  forward reaction control system will be removed.  Endeavour
          will then be towed to the Vehicle Assembly Building  for  powered
          down work.