Prior to entering sector 66, what must you do if a formation flight will enter with separation needs exceeding 5 miles?

• A. Advise the Radar Controller of the formation.
• B. Ignore and proceed normally.
• C. Increase altitude to ensure separation.
• D. Advise the Radar Controller of the formation before entry.

Answer: (D)

When a formation will enter a sector with nonstandard separation needs (more than 5 miles), you must coordinate with the Radar Controller before entry. This proactive notice lets the controller plan and assign the necessary radar separation, possible routing, or altitude adjustments so the formation can enter safely without disrupting other traffic. Saying something after entry or trying to solve it by simply changing altitude doesn’t give the controller the lead time needed to manage airspace safely. Ignoring the situation is not acceptable in any case.