What was found
NDT INSP RT CENTER WING JOINT AT FR40 UPPER HOLE FOUND CRACKED SIGNAL. NDT INSP RT CENTER WING JOINT AT FR40 UPPER HOLE FOUND CRACKED SIGNAL. COMPLIED WITH EA: 6-5710-T0356266 P1. TITLE: WINGS-BASIC WING STRUCTURE-CRACK IN THE UPPER HOLE AT FR40 RHS CENTER WING JOINT. THIS IS CAT B REPAIR. THRESHOLD: TH=IT=3260FC/7041FH, INTERVAL: TH=IT=3260FC/ 7041FH. METHOD OF INSPECTION: AFTER FASTENER AND BUSHER REMOVAL, DO A ROTOTEST INSPECTION(NTM51-10-01). MAJOR REPAIR, IAW FEDEX GMM 6-2-100.