What type of track is an aircraft in when it is outside of both longitudinal and lateral parameters?

When an aircraft is classified as being in a Free Track, it means that it is outside of both longitudinal and lateral parameters established by ATC for radar tracking. This situation typically occurs when a radar target does not conform to the expected flight path or parameters, possibly due to a loss of communication or intentional maneuvering by the pilot outside the usual constraints.

Free Tracks are important as they allow flexibility in radar data, permitting the tracking of an aircraft that is not on a specified route but is still visually observed on the radar. This status helps controllers keep an eye on all active targets, ensuring safety and the possibility of re-establishing communication or maintaining situational awareness.

In contrast, the other classifications like Active Track, Suspend Track, and FLAT Track have specific conditions associated with aircraft behavior and containment within established flight parameters, which do not apply when talking about an aircraft that fully deviates from the prescribed track.