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 LBL 18, HAS A CRACK INDICATION AT AFT FLANGE RADIUS APPROX .2 INCHES IN LENGTH 50 PERCENT FSH. FAILED NDT INSPECTION. REMOVED VERT POST ASSY IAW SRM 51-42-06. INSTALLED SERVICEABLE POST ASSY IAW SRM 51-42-06, REO 601R-53-41-889.