yee@trident.arc.nasa.gov (Peter E. Yee) (08/04/89)
KSC SPACE SHUTTLE PROCESSING REPORT - MONDAY, JULY 31, 1989 STS-28 - COLUMBIA (OV 102) - LAUNCH PAD 39-B On Saturday, technicians completed pressurization of Columbia's hypergolic propellant storage tanks, loaded the dewars on the Pad's fixed service structure with liquid oxygen and liquid hydrogen and completed part one of ordnance installation activities. Yesterday, two space suits were installed and checked out in Columbia's air lock. On Friday, welding operations were completed to replace two valves in the aft compartment for the main propulsion system helium system. Today, technicians are reassembling the helium system panel and are preparing for the engine frequency response (FRT) scheduled to begin at midnight tonight. During the FRT engine valves will be cycled and actuators will be checked out. Launch countdown preparations will begin this week. Launch of Columbia and mission STS-28 is scheduled for August 8 with a launch period of 7:30 a.m. to 11:30 a.m. eastern time. STS-34 - ATLANTIS (OV 104) - OPF BAY 2 Installation and check out of the left orbital maneuvering system (OMS) pod has been completed. Tests of the OMS crossfeed lines are planned today. Preparations for the helium signature test of the main engines are underway with the test scheduled to begin tomorrow. STS-33 - DISCOVERY (OV 103) - OPF BAY 1 Power up operations and systems testing are planned today. Preparations for filling and bleeding the hydraulic system are underway. Modifications and tile work are underway. Testing of the Ku-band antenna is planned this week. Ammonia servicing has been completed. STS-34 SOLID ROCKET BOOSTERS - VAB/RPSF The STS-34 external tank was mated to the solid rocket boosters Sunday afternoon. Cables are being connected between the two hardware elements today. STS-32 EXTERNAL TANK The external tank for the STS-32 mission, Columbia's LDEF retrieval flight scheduled for launch in December, is scheduled to arrive in the turn basin today. The tank will be offloaded and transferred to a checkout cell in the VAB today and tomorrow.