Who is responsible for the safe operation of a facility sector?

The correct answer is the sector or radar team, which consists of air traffic controllers responsible for managing air traffic within a specific sector of airspace. Each team is trained to coordinate and ensure the safe and efficient movement of aircraft within their designated area. This involves monitoring aircraft positions, providing instructions to pilots, and resolving potential conflicts to maintain safe distances between aircraft.

The air traffic manager oversees the overall operations and may have a broader administrative role, but the direct responsibility for safe operations in a specific sector is managed by the sector team. The controller-in-charge is a designated position within the sector team but does not act independently from the team's collective responsibility. The aircraft operations team typically focuses on the operational aspects of aircraft before and after their engagement with air traffic services, meaning they are not responsible for the management of air traffic itself within the sector.