As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FS 409 + 128 VERTICAL POSTS AT LBL 18 INBD AND OTBD SIDES HAVE INDICATIONS NOTED IN THE AFT FLANGE RADIUS AT WL 69 APPROX .250" LONG BY 60 PERCENT FSH. BOTH INDICATIONS FAILED NDT. C-CHECK, REMOVED DISCREPANT VERTICAL POSTS FROM FS 409 + 128/LBL 18 AND INSTALLED NEW SERVICEABLE POSTS IAW SRM AND REO.