Keep Planes from Disappearing after Parking?

[Psyrixx]

Is there any way to make planes not disappear after they land and park? Just to add to the scenery of the airport we're operating out of.

 

I think if I can figure out how to set them to Uncontrolled after they've parked, it'll accomplish my goal (or turn off the group AI) but was curious if there's an easier way to accomplish it.

[Grimes]

Only alternative is destroy() the aircraft and replace it with a static object after it unloads its fuel and payload.