What was found
ON FLIGHT 3869 DURING THE APPROACH THE CREW REPORTED, RECEIVED A SLAT FAIL CAUTION MESSAGE POSTED ON ED-1. THE CREW DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. RESET SLAT CIRCUIT BREAKERS AND PERFORMED OPERATIONAL TEST OF THE FLAPS AND SLATS SYSTEM IAW CRJ700 AMM 27-50-00-710-801. THE OPERATIONAL CHECK WAS GOOD NO DEFECTS NOTED. ALSO REMOVED AND REPLACED THE LEFT WING SLAT ACTUATOR AT TRACK 1-3 IAW CRJMM 27-81-09. THE OPERATIONAL CHECK OF THE FLAPS/SLATS SYSTEM WERE GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.