Safety Management and Human Factors
Core concepts
Safety management systems provide a structured way to identify hazards, assess and mitigate risk, and assure that mitigations remain effective. Candidates should know the four pillars: policy and objectives, risk management, assurance, and promotion. Human factors explain why competent people still make errors: fatigue, complacency, pressure, distraction, lack of communication, and inadequate resources. Understand the dirty dozen categories and the SHEL model (software, hardware, environment, liveware). Know how just culture distinguishes systemic error from reckless behavior, and why reporting systems depend on that distinction. Also understand error management tools such as checklists, independent inspection, task briefing, and sign-off discipline.
Traps in questions
A frequent trap is blaming an individual for an error that arose from a systemic condition, or conversely excusing reckless behavior as system error. Another trap is treating a safety report as automatically punitive. Questions may confuse hazard (a condition) with risk (the likelihood and severity of harm). Watch for scenarios where production pressure is presented as a valid reason to skip a step; the correct answer is to follow procedure and escalate.
Worked example / rule of thumb
Rule of thumb: Fix the system, address behavior separately. Worked example: two technicians sign off the same inspection step because shift handover was rushed and the task card was unclear. Correct analysis: the handover process and task card clarity are systemic contributors that should be reported and corrected; individual accountability is assessed separately and proportionately.