It only segfaults when offline, not connected to a multiplayer server.
Menu: View -> Adjust LOD Ranges
AI/MP Aircraft:
Initial state "Low Detail only" and all sliders on left 0
Change state to "Specify Ranges" and try to move slider "High Detail" or "Low Detail"
Afterwards PC is working hard for a few seconds and segfaults
This report can be closed. #2828 is about the same only much better.