As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND FS409+128 VERTICAL POST RBL18.0 HAS INDICATION INBD SIDE .300 LONG 50% FSH AT AFT FLANGE RADIUS, FAILS NDT. AIRCRAFT REMOVED FROM SERVICE REPLACED FS409+128 VERTICAL POST AT RBL18.0 INBD SIDE IAW CRJ200 SRM 51-42-06, BOMBARDIER REO 601R-53 41-889 REV. D, DATED 2018-10-04 AND BOMBARDIER REO 601R-53-41-1418 REV. --, DATED 2011-05-21.