5 Why Root Cause Analysis – Worksheet
Word document · 1 pages · English · Incident Investigation
A practical 5 Why Root Cause Analysis worksheet for identifying root causes, validating causal chains and developing corrective and preventive actions.
By Saurabh Rawat · Published 2026-09-29 · Updated 2026-11-12
From the document
5 WHY ROOT CAUSE ANALYSIS — WORKSHEET Date Investigator(s) Department / Area Incident / Problem Ref. No. 1. PROBLEM STATEMENT Describe the problem clearly, specifically, and factually (what, where, when, extent): 2. WHY ANALYSIS (continue past Why 5 if root cause not yet reached) WHY 1? WHY 2? WHY 3? WHY 4? WHY 5? 3. ROOT CAUSE IDENTIFIED 4. VALIDATION (read the chain backward: "because of X, Y occurs" — does it hold true?) 5. CORRECTIVE / PREVENTIVE ACTION (CAPA) Action Responsible Target Date 6. VERIFICATION OF EFFECTIVENESS Verified By Date Result / Comments THE EHS GURU — 5 Why Root Cause Analysis Worksheet
5 why analysis · 5 whys · root cause analysis · rca · incident investigation · accident investigation · capa · corrective action · preventive action · ehs
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