What is a risk assessment matrix and how is it used in AMQS decisions?

• A. A grid mapping probability vs. severity to classify risk levels; used to determine priority, controls, and residual risk acceptance.
• B. A ledger of maintenance costs used to budget.
• C. A checklist for MEL items.
• D. A matrix for scheduling crew shifts.

Answer: (A)

A risk assessment matrix is a tool that visually combines how likely a hazard is with how severe its consequences could be, producing a risk level. In AMQS decisions, that risk level guides what actions to take: which issues need priority, what kinds of controls or mitigations are required, and whether the remaining risk after controls is acceptable.

In practice, you identify the hazard or issue, rate its probability and its severity using defined scales, and plot the result in the matrix to get a risk rating (for example, low, medium, high, or extreme). That rating helps teams decide on actions: low risks may be monitored or accepted, medium risks typically require mitigations, and high or extreme risks call for immediate corrective action and robust controls. After implementing controls, you reassess to determine residual risk and whether it fits acceptance criteria per policy and regulatory requirements. This keeps AMQS decisions consistent and defensible, especially for safety-critical items like airworthiness concerns, maintenance program changes, reliability issues, or nonconformities.

This isn’t a budgeting tool, a MEL checklist, or a crew-scheduling matrix, which is why those other options don’t fit.