As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FS 409+128, LBL 18 VERT POST INBD AND OTBD SIDES HAVE INDICATIONS NOTED IN THE AFT FLANGE RADII AT WL 69 APPROXIMATELY .250" LONG BY 50 PERCENT FSH. BOTH INDICATIONS FAILED NDT. NO OTHER INDICATIONS NOTED. REPAIRED IAW EC/TC, REO:601R-53-41-889.