Definition
A simple chart used to rate the level of risk associated with a hazard by combining two factors: the likelihood that an event will occur and the severity of its consequences. The intersection of these two factors on the chart produces a risk level, typically labeled low, medium, serious, or high.
Plain English
A small grid that helps a pilot judge how risky something is by asking two questions: how likely is it to happen, and how bad would it be if it did? Where those two answers meet on the grid tells you how serious the risk is.
Context Anchor
Used during preflight planning, flight instruction, and flight decision-making when identifying hazards and deciding whether a flight or training activity should continue as planned.
Derivation
‘Matrix’ comes from Latin meaning ‘a structure within which something is formed.’ In math and management, it has come to mean a grid of rows and columns. So a risk assessment matrix is literally a grid used to form a judgment about risk.
Why Pilots Care
Helps pilots identify unacceptable risks before they lead to incidents or accidents.
Intuition Check
Do not think of a risk assessment matrix as a guarantee that a flight is safe. It is a decision aid that makes risk easier to see and discuss before choosing what to do.
Example Sentence 1
Before the cross-country flight, the student used a risk assessment matrix to evaluate the combination of low clouds and a tired pilot.
Example Sentence 2
Using the risk assessment matrix, the instructor showed how a minor mechanical issue could become high risk in poor weather.