The phrase soon after the aircraft enters the sector implies what about involving the previous sector?

• A. It does not imply that moving the aircraft in the previous sector is ALWAYS appropriate.
• B. It always requires moving the aircraft in the previous sector.
• C. It means you must never involve the previous sector.
• D. It implies you must wait for two sectors.

Answer: (A)

The timing cue here is about coordination, not a blanket rule about action. Saying “soon after the aircraft enters the sector” signals that you should be ready to consider coordination with the previous sector as the aircraft crosses the boundary, but it does not require moving or altering the previous sector’s aircraft every time. Whether you involve the previous sector depends on the situation—traffic levels, handoff status, and whether there’s a need to ensure continued separation or a smooth transition. In some cases, the current sector can handle the aircraft without involving the previous sector, while in others, coordination is appropriate or necessary.