Root Cause Analysis

2267 WordsSep 29, 201110 Pages
Root Cause Analysis 1 Root Cause Analysis • Root Cause Analysis is a method that is used to address a problem or non-conformance, in order to get to the “root cause” of the problem. It is used so we can correct or eliminate the cause, and prevent the problem from recurring. • Traditional applications of Root Cause Analysis – Resolution of customer complaints and returns. – Disposition of non-conforming material (Scrap and Repair) via the Material Review process. – Corrective action plans resulting from internal and customer audits. 2 Objective • Through this training course, you will: – Understand the meaning of “Root Cause” – Know the steps used to identify the root cause of problems. 3 What is Root Cause? • Root…show more content…
Fell Out? Operator Error? Missed Operation? Seal Seal Omitted Omitted Root Cause -Root Cause Inadequate Inadequate Work Instructions Work Instructions Appropriate But..... is it? Inadequate Can the design be changed to eliminate the need for a seal? Can the design be changed to make it impossible to omit the seal? Can a fixture be made to make it impossible to omit the seal? 18 Tools Used in Root Cause Analysis Y X BRAINSTORMING PARETO CHART FISHBONE DIAGRAM SCATTER DIAGRAM START VALUE LSL USL UCL X N ? Y TIME RUN CHART HISTOGRAM LCL CONTROL CHARTS 6 8 + 2 5 4 7 + STOP FACTOR A FACTOR C 1 FACTOR B 3 + - FLOWCHART TREE DIAGRAM - DESIGN OF EXPERIMENTS 19 Brainstorming WHAT IS IT? Brainstorming is a process in which a group quickly generates as many ideas as it can on a particular problem and/or subject. WHY IS IT USEFUL? Brainstorming is useful because it can help a group of people ut ilize its collective brainpower to generate many ideas in a short period of time. It stimulates creativity and promotes involvement and participation. WHEN IS IT USED? To help clarify mutual expectations and devise ground rules rela ted to a team’s way of operating. HOW IS IT DONE? •Identify a topic, problem or issue and make sure there is mutual understanding of the task and objective. Write the topic on a flip chart. •Each person presents one idea
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