Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!gem.mps.ohio-state.edu!uakari.primate.wisc.edu!ames!trident.arc.nasa.gov!yee From: yee@trident.arc.nasa.gov (Peter E. Yee) Newsgroups: sci.space.shuttle Subject: Shuttle Status for 10/11/89 (Forwarded) Message-ID: <33403@ames.arc.nasa.gov> Date: 11 Oct 89 19:55:20 GMT Sender: usenet@ames.arc.nasa.gov Reply-To: yee@trident.arc.nasa.gov (Peter E. Yee) Organization: NASA Ames Research Center, Moffett Field, CA Lines: 46 KSC SPACE SHUTTLE PROCESSING REPORT - WEDNESDAY, OCT. 11, 1989 STS-34 - ATLANTIS (OV 104) - PAD 39-B Workers have opened up the orbiter's aft compartment and will be setting up special platforms on the mobile launcher platform to allow removal of the controller from main engine number 2. Schedulers are assessing a new launch date. Today, workers will continue setting up access platforms and begin removing heat shields surrounding the number two engine. Once the access has been set up and the heat shields have been removed, the engine will be positioned to allow removal of the controller. Rocketdyne technicians are scheduled to begin disconnecting the controller today. There are about two dozen connections between the controller and engine. Once the new controller has been installed, a flight readiness test, which involves cycling engine valves and actuators, will be conducted to verify the operation of the controller. The controller weighs about 230 pounds and is an electronic package that controls all main engine components and operations. The dimensions of the controller are 23 X 14 X 7 inches. After the successful retest of the controller, workers will button up the aft compartment and remove access stands prior to the resumption of the launch countdown. Only work necessary to change the controller is planned at the launch pad until the countdown resumes. The STS-34 countdown will remain in an indefinite hold at the T minus 19 hour mark. The countdown entered the second planned built-in hold last night at 4 p.m. at the T minus 19 hour mark. Yesterday, the launch team successfully completed loading the power reactant storage and distribution system with the liquid hydrogen and liquid oxygen reactants. Console operators will monitor this system from the firing room. The STS-34 five-member flight crew left the Kennedy Space Center this morning. They will return to Houston and practice launch, entry and Galileo deploy simulations in the shuttle simulator. The crew will return to KSC several days prior to the launch.