What must occur in controlled firing areas (CFAs) when an approaching aircraft is detected?

In controlled firing areas (CFAs), the correct response when an approaching aircraft is detected is that all activities must cease. This is because CFAs are designated areas where military training and operations can occur safely, but they are also subject to the presence of civilian and other aircraft.

When an aircraft is detected approaching a CFA, safety becomes the top priority. Ceasing all activities ensures that there are no hazards that might interfere with the safety of the approaching aircraft. It is essential to maintain a clear and safe airspace for all air traffic, and halting operations allows for proper communication and coordination to prevent any incidents.

This procedure reflects a commitment to aviation safety regulations and the rules governing airspace management. The need to stop activities ensures that risks are minimized and that personnel in the CFA are on alert, facilitating a safe environment for all users in the vicinity of the CFA.