As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND CONTROL LOCK SYSTEM PARTIALLY INOPERATIVE ON POSTFLIGHT INSPECTION, FURTHER INVESTIGATION DETERMINED LEFT AILERON LOCK ARM BROKEN AT LOCK FEATURE CONTACT AREA. CAUSE OF PART FAILURE IS UNKNOWN. PART APPEARS TO HAVE SUFFERED OVERLOADING AT CONTACT POINT, RESULTING IN CRACK, DEVELOPING INTO FAILURE OF THE LOCK ARM. (SEE ATTACHMENT).