As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FUSELAGE SKIN AND UNDERLYING STRINGER WERE FOUND CORRODED BETWEEN FS 680 & 700 AT STRINGER 27R. THE DAMAGED SECTION OF SKIN AND STRINGER WERE CUTOUT AND REMOVED. A NEW SECTION OF STRINGER WAS SPLICED IN PER THE B727 SRM AND THE SKIN CUTOUT WAS REPAIRED WITH AND EXTERNAL ALUMINUM DOUBLER PER ER/A 378032-14, REV B.