As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FORWARD LOWER EDGE OF MAIN SPAR INBOARD BEHIND FUEL TANK BADLY CORRODED. DEFOLIATED BY ABOUT 50 PERCENT OF THICKNESS. MICE NESTS AND FECAL MATTER FOUND. SUBMITTER RECOMMENDED FUEL TANK REMOVAL FOR INSPECTION AT LEAST EVERY 5 YEARS. ALSO, INSTALL INSPECTION HOLE BEHIND TANKS FOR BETTER INSPECTION ACCESS. (X)