What was found
DURING DECENT WE TURNED ON WINGS AND COWLS ANTI-ICE. WE RECEIVED ANTI ICE DUCT CAUTION MESSAGE FOLLOWED BY ANTI ICE DUCT WARNING AND L/R DUCT FAIL. WE RAN THE QRH FOR BOTH WARNING AND CAUTION. WE DECLARED AN EMERGENCY AND DESCENDED IMMEDIATELY. ONCE WE LEVELED OFF WE THEN GOT THE STALL HORN. LANDED WITH NO INCIDENT. (FLIGHT 4877 FILED CLOSED)THIS DISCREPANCY WAS TRANSFERRED TO CAMP ITEM 27722345 WITH THE FOLLOWING CORRECTIVE ACTION: "PLEASE REF. CAMP TRANS ID#27725841, 27725799 FOR CORRECTIVE ACTIONS. "