To be published Proceedings DMSMS Conference, Hollywood, FL, August 2011

The Evaluation of End-of-Repair/End-of-Maintenance Dates for Electronic Assemblies

Peter Sandborn, Anthony Konoza, Raymond Nelson III
CALCE, Department of Mechanical Engineering

Doug Gerdes and Mike Shamet
Harris Corporation


• Electronic systems consist of multiple cards each containing multiple parts.

• Many parts become obsolete long before the system support is terminated – Obsolete: can no longer be procured from the original vendor

• When obsolete parts are needed to repair the cards, they are drawn from inventories that may not be replenishable.

• When all the parts and spare cards have been consumed, the cards may no longer be supportable.

• How long can legacy systems drawing from existing nonreplenishable inventories of parts and cards be sustained?

Complete article available to CALCE consortium members

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