As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND CORROSION ON FUSELAGE SKIN RUNNING UNDERLAP SEAM AT STRINGER 20R FROM BS 1620 TO 1720. ACCOMPLISHED EA F-5330-T0309169 FUSELAGE PLATES & SKINS LOWER SKIN PANEL CORROSION AT LAP JOINT STATION 1621 TO 1720 STRINGER 20R. CATEGORY A MAJOR REPAIR.