As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 4588 ON FINAL APPROACH, CREW RECEIVED A SLATS FAIL CAUTION MESSAGE. DECLARED AN EMERGENCY. FOLLOWED THE AOM PROCEDURES AND LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED RIGHT WING NR 3 SLAT OTBD ACTUATOR IAW AMM 27-81-09-000-806 AND AMM 27-81-09-400-800. OPS CHECKED GOOD PER AMM 27-50-00. AIRCRAFT RETURNED TO SERVICE.