What is defined as an occurrence involving the incorrect presence of an aircraft, vehicle, or person on a designated landing area?

The term that describes an occurrence involving the incorrect presence of an aircraft, vehicle, or person on a designated landing area is "runway incursion." This definition specifically points to situations where an unauthorized object, which can be an aircraft, a vehicle, or a pedestrian, interferes with the safe operation of aircraft on the runway, leading to potential safety hazards.

Understanding the context of this term is crucial for maintaining airport safety and operational efficiency. A runway incursion can happen due to a variety of factors, including miscommunication, failure to follow protocols, or navigational errors, and it has significant implications for air traffic control and flight operations.

In contrast, a runway excursion refers to an aircraft leaving the runway during takeoff or landing, often as a result of loss of control or weather conditions. A taxiway incursion pertains specifically to an unauthorized presence on a taxiway, which is a different area of the airport used for aircraft movement. A ground incident is a broader term that can include any type of event on the ground, but doesn't specifically address unauthorized access to a runway.