As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WING FITTING CORRODED. THERE IS NO ACCESS FOR INSPECTION OF PART. AFTER ONE AIRCRAFT HAD WING SEPARATION AND DISCOVERED PART THAT CORRODED, INSPECTED ENTIRE FLEET OF 10 SUPER CUBS AND FOUND CONDITION ON 2 AIRCRAFT (THIS BEING ONE OF THEM). ALL FOUND TO BE FRONT FITTINGS FORWARD SPAR.