[sci.space.shuttle] Shuttle Status for 02/23/89

yee@trident.arc.nasa.gov (Peter E. Yee) (02/24/89)

            KSC SPACE SHUTTLE PROCESSING REPORT - THURSDAY, FEB. 23, 1989

                     STS-29  -  DISCOVERY (OV 103)  -  PAD 39-B

               Today, workers are installing heat shields around the three
          main engines. Meanwhile, connections of the pumps continue from
          the orbiter's aft compartment.

                The helium signature leak test of the main propulsion
          system is scheduled to begin Friday evening and a flight
          readiness test will be conducted to cycle the main engine valves
          next week. Preparations for launch are scheduled to begin next
          week.   

               Today, software will be loaded into the Inertial Upper
          Stage's general purpose computers and azimuth determination of
          the redundant inertial measurment units will be performed. A
          flight readiness check of the IUS systems will begin today and
          extend through tomorrow.

               The STS-29 launch date will be set at the conclusion of the
          Flight Readiness Review, scheduled for March 2 and 3 at KSC.


                     STS-30  -  ATLANTIS (0V 104)  -  OPF BAY 2

               A test of the orbiter's flight controls is underway today.
          Activities continuing include checkout of the main propulsion
          system, closeouts of the midbody, tile inspections and
          waterproofing.


                     STS-28  -  COLUMBIA (OV 102)  -  OPF BAY 1

               Checkout of the main propulsion system is continuing today.
          Technicians are scheduled to begin installing the power reactant
          storage and distibution system tanks. Return-to-flight
          modifications are underway.


                        STS-30 SOLID ROCKET BOOSTERS  -  VAB

               Closeouts of the STS-30 booster field joints are underway
          today. Measurements were taken to determine the alignment of the
          boosters in preparation for external tank mating. The external
          tank is scheduled to be mated to the boosters Monday evening.

               The left aft booster for Mission STS-28 arrived at the
          Rotation Processing and Storage Facility on Tuesday and buildup
          operations are underway.