As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEADING EDGE SLAT DISAGREE MESSAGE DISPLAYED. THE NUMBER 6 LEADING EDGE SLAT ROTARY ACTUATOR FAILED AND CAUSED SOME BINDING IN THE SLAT. THE BINDING WAS DETECTED BY THE FLAP/SLAT ELECTRONIC UNIT WHICH SUBSEQUENTLY SHUT DOWN THE SYSTEM AS FAILURE PROTECTION. THE NUMBER 6 SLAT ACTUATOR WAS REPLACED AND OPERATIONALLY CHECKED GOOD.