What was found
FS 409+128, LBL 18, OTBD VERTICAL POST HAS AN INDICATION NOTED IN THE AFT FLANGE RADIUS AT WL 69, .250" LONG BY GREATER THAN 50% FSH. FAILED NDT INSPECTION. CONTINUATION CARD 8798015 OP 41. R & R INBD & OTBD FS 409+128, LBL 18, VERTICAL POST, STIFFENERS IAW SRMS 51-41-02 & 53-41-19 & REO 601R-53-41-889. THIS IS A MAJOR REPAIR.