Advanced Drainage Systems Cessna 560XL Citation XLS+ for the TBAI model.
These are textures only.
The TBAI Cessna 560XL FSX model is required.
It can be found at https://library.avsim.net/esearch.php?CatID=fsxaia&DLID=202206
Updated model can be found at:
https://www.alpha-india.net/forums/index.php?topic=24771.msg334098#msg334098
Flightplans available here: https://aibizjetproject.wordpress.com/tag/advanced-drainage-systems/
EDIT 1 AUG 2020: paint(s) updated based on latest paintkit