As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 9565 -ATB/DE- THE CREW PERFORMED AN AIR TURNBACK AND DECLARED AN EMERGENCY WITH ATC DUE TO A SLAT DISAGREE. THE AIRCRAFT REQUIRED SIGNIFICANT AILERON CORRECTION FOR WINGS LEVEL ATTITUDE. THE QRH WAS COMPLIED WITH, AND THE RESULT WAS A NORMAL SLAT EXTENSION FOR A NORMAL APPROACH AND LANDING. CORRECTIVE ACTION: MAINTENANCE REPLACED THE SLAT CONTROL VALVE AND RETURNED THE AIRCRAFT TO SERVICE. (LP #5603766)