As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MDW - FLT 418 - NO EMERGENCY DECLARED LANDING UNEVENTFUL. AT FLAPS 1 RECEIVED UNCOMMANDED ROLL. POST FLIGHT REVEALS LOOSE, LEADING EDGE SLAT. FOUND NR 4 SLAT, INBOARD AUX TRACK ADJUSTMENT BOLT LOOSE. REPLACED BUSHING AND TIGHTENED BOLT PER MM 27-81-21, SLAT OPS CHECK NORMAL PER MM 27-81-0. (M)