🔎 Incident Investigation & Root Cause Analysis
Free incident investigation & RCA training with a completion certificate.
Last updated: June 2026
Learn how to investigate incidents and near-misses to prevent recurrence — not to assign blame. Master reporting and legal notification, the three levels of cause, 5 Whys, fishbone (Ishikawa 6M), timelines and barrier (bow-tie) analysis, the 4 Ps of evidence, witness interviewing, CAPA closed-loop verification and how safety performance is measured with TRIR, LTIFR and leading indicators. The course is organized into 7 modules, ending with a final exam (pass mark 80%). It is free awareness-level training designed for anyone who needs a practical, working understanding of the topic.
What you'll learn
- Why we investigate — prevention, not blame
- Report & legally notify — incidents and near-misses
- First response & securing the scene
- Immediate, underlying and root causes
- Methods: timelines, 5 Whys, fishbone (6M) & bow-tie
- Evidence (4 Ps) & interviewing witnesses
- CAPA, hierarchy of controls & measuring (TRIR/LTIFR)
Learning objectives
- Investigate to prevent recurrence under a just culture — not to blame
- Report and legally notify all incidents and near-misses (OSHA 29 CFR 1904, RIDDOR)
- Take the correct first response: make safe, isolate energy and preserve the scene
- Tell immediate, underlying and root causes apart
- Apply 5 Whys, fishbone/Ishikawa (6M), timelines and barrier (bow-tie) analysis
- Gather evidence across the 4 Ps and interview witnesses cognitively, blame-free
- Build effective CAPA on the hierarchy of controls with verified close-out (ISO 45001 cl.10.2)
- Calculate and interpret TRIR, LTIFR and pair them with leading indicators