Define a runway incursion.

Define a runway incursion.

• A. A taxiway misalignment
• B. Any unauthorized presence or movement on a runway that could lead to a collision with an aircraft
• C. Weather hazard on the runway
• D. A sign of runway maintenance

Answer: (B)

Runway incursions are all about unauthorized presence or movement on a runway that creates a risk of collision with an aircraft. If someone or something is on the runway without clearance—whether a vehicle, a person, or an aircraft occupying or entering the runway area when it shouldn’t—it's considered an incursion because it could lead to a dangerous interaction with arriving or departing airplanes. This definition captures the safety concern you’re trained to prevent: clearance, proper routing, and control of access to the active runway. Weather hazards or maintenance signs describe different kinds of runway hazards or conditions, but they don’t by themselves describe an unauthorized entry or movement onto the runway. A taxiway misalignment isn’t about someone on the runway, and a weather issue isn’t about someone being there without authorization.

Runway incursions are all about unauthorized presence or movement on a runway that creates a risk of collision with an aircraft. If someone or something is on the runway without clearance—whether a vehicle, a person, or an aircraft occupying or entering the runway area when it shouldn’t—it's considered an incursion because it could lead to a dangerous interaction with arriving or departing airplanes.

This definition captures the safety concern you’re trained to prevent: clearance, proper routing, and control of access to the active runway. Weather hazards or maintenance signs describe different kinds of runway hazards or conditions, but they don’t by themselves describe an unauthorized entry or movement onto the runway. A taxiway misalignment isn’t about someone on the runway, and a weather issue isn’t about someone being there without authorization.