As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND CORROSION ON LEADING EDGE SKIN WHEN STAB BOOTS WERE BEING REPLACED. COULD HAVE BEEN CAUSED BY METAL NOT BEING PROPERLY TREATED WHEN MANUFACTURED OR BOOTS GOT HOLES IN THEM LETTING MOISTURE IN. SUBMITTER STATES PROPER TREATMENT OF METAL AND/OR GOOD BOOTS INSTALLED AT ALL TIMES.