Space station prototype environmental/thermal control and life system - A current overview.

The Environmental Thermal Control and Life Support System (ETC/LSS) for a space station has progressed through the design phase into the fabrication of hardware. An overview of the current status of this program is presented with emphasis on the impact and implementation of commonality and maintainability concepts as well as the interface with an on-board checkout system. The programmatic techniques and procedural modifications employed and anticipated are treated.