1.: Place the AAF jet on the map.
2.: Put "this landat 0" in its init.
3.: Place player at south-west end of the airstrip
4.: Watch how the plane crashes 700m SW of their old touch down point.
Try it for the other airfields by exchanging 0 with any number between 0-5 for Altis. Always the same result.
Other repro:
1. Place a Buzzard in the editor and set its state to "flying"
2. Start the mission
3. Activate "Landing Autopilot"
4. Wait