As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT COWL ANTI-ICE CAUTION MESSAGE IN FLIGHT WHEN RIGHT COWL ANTI-ICE IS SELECTED ON. SAT -38 DEGREES C. COMPLIED WITH EMERGENCY/ABNORMAL CHECKLIST AND MESSAGE REMAINED ON. CLIMBED OUT OF ICING CONDITIONS. DURING DESCENT RT COWL ANTI-ICE OPERATED NORMALLY. GROUND RAN BOTH ENGINES AND CHECKED COWL ANTI-ICE SYSTEM IAW MM 30-20-00. NO PARTS REPLACED. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.