As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING SCHEDULED AILERON INSPECTION, FOUND SKIN CRACKED IMMEDIATELY ADJACENT TO THE LEADING EDGE SKIN WHERE THE TOP SKIN AND LEADING EDGE SKIN LAP. THE CRACK WAS ABOUT 5.50 INCHES LONG AND NOT VISIBLE WITHOUT PRESSING ON THE SKIN ITSELF.