What was found
FS409+128 BL0 LH VERTICAL POST HAS AN INDICATION .2" LONG BY 60%FSH IN THE UPPER AFT RADIUS @ WS69. FAILED NDT INSPECTION. (C-CHECK) RO 2/27/2020 REMOVED UNSERVICABLE POST AND INSTALLED SERVICABLE POST AT FS 409+128 BL0 IAW CRJ 200 SRM AND BOMBARDIER REO COMPLETED FORM M-131 AND M-337 PART FOR PART REPLACEMENT NO WEIGHT CHANGE SEE ATTACHED CONTINUATION CARD AND SKYCARD FOR DETAILS OF WORK PERFORMED