Air Bohemia Cessna 560XL Citation Excel OK-AST for the KCAI model.
These are textures only.
The KCAI Cessna 560XL Citation Excel model is required.
It is available here: https://www.alpha-india.net/forums/index.php?msg=394758
Flightplans available here: https://www.alpha-india.net/forums/index.php?msg=404288