Latent errors defined as an undiscovered performance problem whose adverse consequences only become evident when combined with other factors

• A. False
• B. True
• C. Partly true
• D. Cannot be determined

Answer: (B)

Latent errors are hidden weaknesses in a system, process, or organization that don’t cause harm on their own but create the potential for harm to surface when other factors align. This fits the idea that the adverse consequences become evident only when combined with other elements—such as active errors, equipment issues, or procedural gaps—allowing an incident to occur. In safety terms, these latent conditions can reside in design flaws, inadequate training, maintenance backlogs, or management decisions, sitting in the background until a triggering event brings them to light. So the statement is true because latent errors are undiscovered performance problems whose harmful effects are revealed only when other factors come together to create a pathway for failure. For example, a flawed maintenance schedule might not cause problems by itself, but when a technician makes a timing error and an aging component fails, the combination leads to an incident.