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 AIR TURNBACK INTO KWI. FLAP/SLAT ELECTRONIC UNIT BITE (FSEU) PER FIM 27-51-00 FIG 104B UNABLE TO DUPLEATE SWAPPED FSEU NR 1 BOX P/N 285N0011-40 S/N D02243 TO NR 3 BOX POSITION S/N 2244 PER BLOCK NR 16 ALSO ACCOMPLISHED FIM 27-81-00 FIG 104 UNABLE TO DUPLICATED MSG PERFORMED THE ROLLERS LUBICATION PER MM 12-21-08/301 AND OPERATE THE SLATS AND LUBEICATED THE ROLLERS AGAIN NO CAUTION MGS DISPLAY SYSTEM TEST OK