An Automatic Reliability Assessment and Analysis System for Spacecraft Automatic Checkout Equipment 670681

This paper describes an operational, computerized system which produces automatically many tools useful in the reliability and maintainability surveillance of a hardware project. Some of the tools, such as the flagging of selected assemblies and components, are especially of value in product improvement studies. Other tools, such as reliability and maintainability trend charts produced on a printer-plotter (each with superimposed predictions), are of value in the comparison of actual performance with expected performance. These tools are used at many levels of assembly, from piece-part to total system.
The development of this computerized system was sponsored by NASA specifically for the Acceptance Checkout Equipment for the Apollo Spacecraft (or ACE-S/C). This checkout equipment is being used to monitor Apollo Spacecraft performance at the Grumman facility at Bethpage, Long Island; at the NAA facility at Downey, California; at the Manned Spacecraft Center at Houston, Texas; and at the NASA Merritt Island complex at Cape Kennedy. Although the computerized system was designed for a specific hardware project, the surveillance and product improvement tools used are of such a generalized nature that they would be applicable in other hardware projects, whether intended for earth or space applications.
This paper discusses in depth the computerized system and its application to ACE-S/C. Attention is focused on the novel automatic analysis tools which permit the reliability specialist to be freed of the laborious chore of perusing countless statistics.


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