As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - WHILE PARKED WITHOUT PASSENGERS ON BOARD, THE LEFT WING TIP AND OUTBOARD TRAILING EDGE WERE DENTED BY A BAG CART TOW TRACTOR. MAINTENANCE REMOVED THE AILERON AND WING TIP AND INSPECTED THOSE AREAS FOR FURTHER DAMAGE. A SERVICEABLE AILERON AND WING TIP ASSEMBLY WERE INSTALLED. A TEST FLIGHT WAS SUCCESSFUL.