Incident Investigation
Multi method root cause analysis with corrective action close out and recurrence prevention
What this element is and why it matters
Incident Investigation is the structured learning discipline that converts every incident, near miss, and significant deviation into action that prevents recurrence. The element maps to OSHA PSM 1910.119(m), which requires investigation of any incident with catastrophic release potential within 48 hours. Modern programmes bring together several root cause analysis methods such as TapRoot, Apollo, event and causal factor charting, and MORT, just culture facilitation per James Reason, and electronic action tracking systems, and our team runs them so the learning actually changes how your facility operates.
Individual significance for organisations
Organisations that learn from incidents prevent recurrence, while those that do not suffer the same incidents over and over. The element is also a strong indicator of culture maturity, because a site that reports near misses and investigates them deeply has psychological safety, while a site that does not has hidden problems. Investigation quality is a powerful organisational diagnostic.
Contribution to Risk Based Process Safety (RBPS)
Incident Investigation is the feedback loop that closes pillar four, learning from experience. It feeds Measurement and Metrics (Element 18) with Tier 1 and 2 process safety event data, drives the priority areas for Auditing (Element 19), informs Management Review (Element 20), and triggers corrective actions through MOC (Element 13). Element 17 also closes the loop back to the culture of Element 1 through the application of just culture.
What compliant execution looks like
How we implement this element
A focused six step methodology calibrated to deliver incident investigation as a working capability rather than a documented compliance artefact.
We define the investigation trigger per OSHA PSM (m) and your corporate threshold, preserve the evidence chain, and secure the DCS, historian, and CCTV data.
We form a multi discipline team with an independent chair, set a time bound mandate, and align it with just culture principles.
We apply the root cause analysis method that fits the incident complexity, using TapRoot for systematic causes, Apollo for human factors, and event and causal factor charting for sequence, and document the causal chain.
We reach beyond physical and immediate causes to the latent organisational and cultural factors, and apply the substitution test from just culture.
We design corrective actions through the hierarchy of controls, from elimination and substitution through engineering and administrative controls to PPE, and specify a monitoring KPI to verify effectiveness.
We issue the investigation report, distribute it across sites, and integrate it with API RP 754 process safety event indicators and corporate HSE governance.
Element implementation flow chart
A decision gated workflow that shows the actual sequence of activities from initiation through steady state operation, with key decision points highlighted.
What we produce
- An investigation procedure with a 48 hour trigger per OSHA PSM (m)
- Root cause methodology selection guidance
- Just culture facilitation training
- A corrective action tracking database
- A lessons learned sharing protocol
- An annual investigation programme review
Where execution fails
- An investigation that stops at closing out operator error
- A just culture that is announced but applied through blame
- Corrective actions filed but never closed
- Lessons learned that are never shared across sites
Codes this element is built on
Explore related elements in this framework
Risk Based Process Safety (RBPS) full element index
Talk to us about implementing Incident Investigation
We can scope this element implementation against your facility, regulatory context, and existing management system maturity, then integrate it with the other Risk Based Process Safety (RBPS) elements you already operate.