JAN APCH must not transition arriving aircraft past the clearance limit until they are at or below what altitude?

The correct altitude at which JAN APCH must not transition arriving aircraft past the clearance limit is 5,000 feet. This altitude is significant because it is a key point in the management of air traffic, ensuring safety and compliance with standard operating procedures.

In air traffic control, transitioning an aircraft past a clearance limit typically involves clearance to proceed to a subsequent fix or destination beyond that limit. The requirement to hold at or below 5,000 feet ensures that the aircraft remains within a safe altitude range, avoiding potential conflicts with other aircraft that may be operating at higher altitudes or those that may be approaching a terminal area.

This policy is likely based on established safety protocols to maintain vertical separation between arriving and departing traffic, as well as to manage the airspace more efficiently. By enforcing this altitude limitation, controllers can ensure a smoother flow of traffic, minimizing the risk of altitude infringements or other air traffic complications.