What term is used to describe the situation when an aircraft crosses the hold line?

The term used to describe the situation when an aircraft crosses the hold line is "Active runway crossing." This situation indicates that the aircraft is moving onto or across a runway that is deemed active, meaning it could be used by other aircraft for takeoff or landing. The hold line serves as a critical safety mark, helping to prevent runway incursions by clearly indicating where aircraft should stop until they receive clearance from air traffic control. Crossing this line without proper authorization poses significant risks and can lead to dangerous situations.

Understanding this terminology is essential for ensuring safe operations on the airport surface and maintaining situational awareness for both pilots and air traffic controllers. By recognizing the implications of crossing the hold line, personnel are better equipped to handle potential conflicts and uphold safety protocols in a busy airport environment.