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Statistical process control implementations within the aviation industry
Merriman, Roger A.
Merriman, Roger A.
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dissertation
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2021-07
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Abstract
In 1931, Walter Shewhart introduced his work in statistical process control (SPC)
through his book, Economic Control of Quality of Manufactured Product. A common confusion
in the use of SPC is that it does not fit every business or industry. Since Shewhart’s work was
published, various companies and industries have implemented such practices as a method to
control their manufacturing quality of product, service quality and design quality.
In 2017, a supply chain quality organization from a well-known business jet
manufacturer discovered that vendors of its supply base were posting ostensibly statistical
process control charts on metric walls in their facilities. The charts were not error free. Out of
date data placed on the charts, the preponderance appeared to be weeks or months old, and
incorrect use of control and specification limits indicated there might be a gap. The purpose of
this research was to discover why businesses in the aviation industry are not taking advantage of
SPC practices and methodologies.
To identify the potential barriers inhibiting the deployment or growth of SPC
implementations in the aviation industry, data from a survey of members of the aviation supply
base was paired with a review of existing literature. The major challenges to implementing SPC
in the aviation supply base were recognized as leadership commitment, cultural mindset and
behaviors, understanding the benefits of SPC, and a lack of knowledge.
A conceptual framework for the implementation and training systems was constructed
after the barriers and gaps were identified. A recommendation for sustaining the system is also
proposed.
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Thesis (Ph.D.)-- Wichita State University, College of Engineering, Dept. of Industrial, Systems, and Manufacturing Engineering
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Wichita State University
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© Copyright 2021 by Roger Alan Merriman II
All Rights Reserved