Case Study 1: Reducing the Occurrence of No-Fault-Found Components

An international technology company manufactures, sells, and services very complex electronic consumer products. During the service of these products, parts are sometimes replaced and sent back for refurbishment and reuse. Not all the parts are defective. A no-fault-found (NFF) occurs when a field replaceable part is removed from a customer’s product (as part of a product repair) and returned to the depot for repair and refurbishment. At the depot, the unit is found to be operating within specs and is coded “no fault found.” NFF results in waste for the company from doing unnecessary work and paying for transit of parts. The current process increases inventory needed to support ...

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