On what condition can vehicles drive close to an aircraft?

Vehicles are permitted to drive close to an aircraft when authorized by the marshaller. The marshaller is the trained personnel responsible for guiding aircraft safely on the airfield, and their authorization establishes the necessary clearance and safety protocols for ground vehicles to operate near parked or taxiing aircraft. This ensures that the movements of the vehicle and the aircraft are coordinated, reducing the risk of accidents or collisions.

By following the marshaller's directions, drivers can be assured that the necessary precautions are in place, such as ensuring the aircraft is secured and that it is safe to approach. Therefore, adherence to the marshaller’s instructions is critical for maintaining safety in airport operations.