As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FS409+128 RBL18 I/B VERT POST HAS A CRACK INDICATION NOTED IN THE AFT FLANGE RADIUS AT WL69 .325 LONG BY 70%FSH. FAILED NDT (C-CHECK) RO 12/27/2019 PERFORMED A MAJOR REPAIR TO FS 409+128 RBL 18 I/B VERTICAL POST IAW BOMBARDIER REO. COMPLETED SKYWEST TASK CARD. FORM M-337 IS ATTACHED.