What was found
WHILE FLIGHT 5277 DCA-RDU WAS EN-ROUTE MULTIPLE STATUS MESSAGES ILLUMINATED FO SIDE ATTITUDE INDICATOR BLANK, YAW DAMP 2 INOP S MSG, PITCH FEEL FAULT S MSG, RUDDER LIMIT FAULT S MSG, LEFT AND RIGHT FADEC FAULT 2. DUE TO THE MULTIPLE MESSAGES CREW DECLARED EMERGENCY WITH RDU APPROACH. NO EMERGENCY VEHICLES ROLLED AND THE AIRCRAFT LANDED SAFELY UNDER ITS OWN POWER. CABIN WAS NOT PREPPED FOR EMERGENCY LANDED. REMOVED ANDS REPLACED AHRS COMPUTER #2. OPS CHECK GOOD.