As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND SIGNIFICANT CORROSION IN BOTH LT AND RT WING CENTER SECTION BEHIND REAR SPAR. REMOVED LOWER SKINS. REPLACED AFFECTED COMPONENTS, CLEANED AND TREATED SURROUNDING AREA. REASSEMBLED USING STANDARD MX PRACTICES AS SET FORTH IN AC 43-13-1B, SEC 4.