As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED SLATS FAIL MESSAGE ON APPROACH. SLATS FAILED AT 3 DEGREES, DECLARED AN EMERGENCY AND FOLLOWED QRH PROCEDURES LANDED WITHOUT INCIDENT. MAINTENANCE WAS DISPATCHED TO AIRCRAFT AND TROUBLESHOT. REMOVED AND REPLACED SF-ACE CONTROLLER, SYSTEM OPERATIONAL CHECK GOOD AND A/C WAS RETURNED TO SERVICE.