As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REMOVED LT AND RT AUXILIARY FUEL TANK ACCESS COVERS FOR INSPECTION. FOUND CORROSION ON LT AND RT WING BONDED PANEL DISH FLANGES. RIGHT ACCESS COVER HAD SEVERE CORROSION AND WAS REPLACED WITH NEW. INSTALLED NEW GASKETS IAW RECOMMENDED SB 28-4059.