As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND FS 409+128, VERTICAL POST RBL 18.0 INBD AND OTBD SIDES HAVE CRACK INDICATIONS NOTED APPROX .2 INCHES IN LENGTH 50 PERCENT AND 100 PERCENT FSH. FAILED NDT INSPECTION AT AFT FLANGE RADIUS. REMOVED VERTICAL POST IAW SRM 51-42-06. INSTALLED NEW POST IAW SRM 51-42-00 AND REO 601R-53-41-889.