Which entity coordinates with the appropriate FSS and affected facilities at least 5 hours before preventative maintenance of NAVAIDs and radars?

• A. Airfield Facility Managers
• B. Flight Operations
• C. Air Traffic Control
• D. Maintenance Supervisors

Answer: (A)

Coordinating preventive maintenance of navigation aids and radars hinges on timely, cross‑agency communication with all users and managers of the airfield’s infrastructure. The person responsible for airfield facilities—the Airfield Facility Manager—acts as the main point of contact to arrange the maintenance window and to notify the Flight Service Station and the facilities that will be affected. By initiating this coordination at least five hours ahead, they ensure pilots and operations teams have the right information, air traffic flow can be adjusted as needed, and the maintenance work can proceed with proper access and safeguards. While Flight Operations, Air Traffic Control, and Maintenance Supervisors each have important roles, the specific responsibility for coordinating with FSS and affected facilities rests with the Airfield Facility Manager.