As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER DEPARTURE MEM NR 4 SLAT INDICATED EXTENDED WITH FLAPS SELECTED TO 2 DEGREES. AMBER L/E FLAPS LIGHT ILLUMINATED ON FORWARD PANEL. GREEN NR 4 SLAT ANNUNCIATOR LIGHT ILLUMINATED DN F/E AUX PANEL. COMPLIED WITH CHECKLIST PROBLEM. RETURNED FOR LANDING. CYCLED LEADING EDGE SLAT & OVERIDE SWITCHES S1010 & S1011, CYCLED SLATS SEVERAL TIMES NR 4 SLAT AMBER & GREEN LIGHTS OPS CHECK SATISFACTORY ON FWD & AFT PANELS. A/C OK FOR SERVICE. ALSO VISUAL CHECK OF SLATS OPS CHECK NORMAL.