After a mishap, which level will investigators normally first address during root cause analysis?

• A. Battalion level
• B. Division level
• C. Executive level
• D. Operator level

Answer: (D)

The initial focus in root cause analysis is on the actions and conditions at the point of the event—the operator. Investigators start by gathering firsthand facts about what the person actually did or didn’t do, how they used procedures or controls, and the immediate environment and constraints they faced. This level is closest to the mishap and provides the most actionable information for immediate corrective actions, such as retraining, clarifying procedures, or adjusting work practices. If those operator-level factors don’t explain the incident, the inquiry then looks upward to higher levels (supervision, equipment design, or organizational factors) to uncover latent causes. But the first and most direct level to address is the operator, because it directly explains how the mishap unfolded and points to practical fixes that can prevent recurrence.