🗓️ WEEK 4: Root Cause Analysis Methods
Résumé de section
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Pros and Cons of QRA
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Phase de remise ouverte : vendredi 21 novembre 2025, 14:50Phase d’évaluation fermée : mercredi 10 décembre 2025, 14:50
´ Scenario: "Maintenance worker severely injured while repairing conveyor system"
Initial Facts:
´ Worker bypassed safety interlock
´ Machine started unexpectedly
´ No lockout/tagout procedure followed
´ Inadequate supervision
Investigation Findings:
´ Multiple system failures identified
´ Organizational and cultural issues
´ Training deficiencies
´ Equipment design flaws
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Group Activity - RCA Diagram
´ Task: Create a Cause and Effect Diagram for the conveyor accident
´ Categories to Consider:
´ People: Training, competence, supervision
´ Methods: Procedures, work permits, communication
´ Machines: Design, maintenance, safety features
´ Environment: Lighting, noise, workspace
´ Management: Policies, resources, safety culture
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