As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT WING ANTI ICE CAUTION WHILE TROUBLESHOOTING ANTI ICE DUCT WARNING. (ENROUTE ACFT DIVERTED, DUE TO MX -- EMERGENCY DECLARED). PERFORMED OPS TEST OF ANTI ICE CONTROLLER AND INDICATING SYS IAW AMM 30-12-00 AND LEAK TEST OF WING ANTI ICE DUCT IAW AMM 30-11-00, NO DEFECTS NOTED, OK FOR SERVICE.