As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING SCHEDULED INSPECTION, TOP OF THE AILERON JUST OUTBOARD OF THE INNERMOST HINGE POINT ALONG THE LAP JOINT WAS FOUND TO BE CRACKED. CRACK WAS APPROX 4.5 INCHES LONG AND HAD BEEN CONCEALED UNDER THE PAINT. REPLACED THE AILERON WITH A SERVICEABLE PART.