As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT. CREW REPORTS DURING CRUISE NUMEROUS CAS MESSAGES RELATED TO AIRCRAFT ANTI-ICE FAIL. AIRCRAFT DIVERTS BACK TO MAINTENANCE BASE KFRG, AFTER TROUBLESHOOTING FAILURE DETERMINED TO BE RH ENGINE ANTI-ICE VALVE INOPERATIVE. VALVE IS REPLACED WITH SERVICEABLE UNIT AND AIRCRAFT RETURNED TO SERVICE WITHOUT FURTHER ISSUES NOTED.