What was found
ON FLIGHT 3529 DURING THE LANDING THE CREW RECEIVED A SLATS FAILED CAUTION MESSAGE. THE CAPTAIN DECLARED AN EMERGENCY AND FOLLOWED THE AIRCRAFT OPERATING MANUAL PROCEDURES. THE AIRCRAFT LANDED WITHOUT INCIDENT AND TAXIED TO GATE. REMOVED AND REPLACED THE SLAT/FLAP ELECTRONIC CONTROL UNIT NR 2 IAW AMM 27-51-05. THE OPERATIONAL TEST WAS GOOD IAW AMM 27-50-00. THE AIRCRAFT WAS RETURNED TO SERVICE.