HFACS defines an Error as ...

HFACS defines an Error as ...

• A. Intentional deviation
• B. Normal accepted behavior that fails to achieve the desired outcome (unknown or unintended actions)
• C. Deliberate deviation from standards, policy or SOP
• D. Latent condition

Answer: (B)

In HFACS, an Error is an unintentional action that fails to achieve the desired outcome. This category covers slip-like and mistake-type actions where the operator’s behavior is still within what could be considered normal performance, but it goes wrong due to cognitive, perceptual, or knowledge gaps. The key idea is that the action was not deliberate or intended to violate rules; it happened by accident or misjudgment, leading to an undesired result. This distinguishes errors from violations, which are deliberate deviations from standards, SOPs, or policy. Latent conditions, on the other hand, are systemic factors at higher levels (organizational, environmental) that can contribute to errors but are not the immediate act itself. So the choice describing normal accepted behavior that fails to achieve the desired outcome—i.e., an unintended action that leads to an undesired result—best captures the concept of an Error in HFACS.

In HFACS, an Error is an unintentional action that fails to achieve the desired outcome. This category covers slip-like and mistake-type actions where the operator’s behavior is still within what could be considered normal performance, but it goes wrong due to cognitive, perceptual, or knowledge gaps. The key idea is that the action was not deliberate or intended to violate rules; it happened by accident or misjudgment, leading to an undesired result.

This distinguishes errors from violations, which are deliberate deviations from standards, SOPs, or policy. Latent conditions, on the other hand, are systemic factors at higher levels (organizational, environmental) that can contribute to errors but are not the immediate act itself.

So the choice describing normal accepted behavior that fails to achieve the desired outcome—i.e., an unintended action that leads to an undesired result—best captures the concept of an Error in HFACS.