As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW RECEIVED A SLAT FAIL MESSAGE. CREW DECLARED AN EMERGENCY AND WITH PASSENGERS BRACING, LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT AND R & R SF-ACE IAW AMM. OPS CHECKED GOOD AND ACFT IS GOOD FOR SERVICE. PROBLEM RETURNED ON A FLIGHT LATER THAT DAY. AN EMRGENCY WAS NOT DECLARED AND THE SLAT LO RATE WAS PLACED ON MEL. THE T1 SKEW SENSOR, PN 5913306, SN A792 WAS REPLACED IAW AMM AND THE MEL WAS CLEARED.