When are vehicles allowed within the Circle of Safety?

Vehicles are allowed within the Circle of Safety primarily to provide immediate service to an aircraft. This area is designated to enhance safety by ensuring that there is a buffer zone around the aircraft during critical operations. When service is needed, such as for fueling, catering, or technical support, authorized vehicles can access this area to ensure the aircraft is serviced without delay, ensuring operational efficiency and safety.

Transporting passengers or conducting inspections do not necessitate the same level of immediate access to the aircraft as providing service does, which is why they are typically restricted from this area. Maintenance operations may also warrant limited access, but they are usually conducted in designated areas rather than directly within the Circle of Safety, as safety protocols prioritize immediate service to aircraft as a prime reason for vehicle access.