scaffolding was installed around the orbiters aft to allow technicians to access the main engines.main engines were locked in place and covers installed.heat shields were removed from the engines and aft access were opened.refuse and other waste products including draining of the potable water system were offloaded.high-pressure gases were vented from the environmental control and life support systems.The oxygen system was rendered inert with gaseous nitrogen and the hydrogen system with gaseous helium. fuel cell tanks were drained of remaining cryogenic reactants.payload bay doors were opened and any hazardous payloads were processed for safety. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |