As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED RIGHT ENGINE BLEED AMBER CAS MESSAGE IN FLIGHT EN ROUTE FROM LIT TO CLT. CREW DIVERTED TO BNA AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, REMOVED AND REPLACED NR 2 ACSC (AIR CONDITIONING SYSTEM CONTROLLER) AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUAL. AIRCRAFT WAS RELEASED FOR SERVICE.