As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT HORIZONTAL STAB. LOWER STRINGER NO. 10 LOWER HORZ. FLANGE RBL 56, P/N 181T4110-4, FOUND CORROSION DURING INSPECTION ON STRINGER P/N 181T4110-4 COMMON TO SKIN PANEL REMAIN THICKNESS MATERIAL OF 0.135 INCH ORIGINAL THICKNESS WAS 0.165 INCH. THE TOTAL BLENDED AREA WAS APPROXIMATELY 2.5 INCH AND 1 INCH WIDE. REPAIRED AREA IAW REA B655-46297MR.