What was found
THIS EO IS BEING ISSUED TO PROVIDE INSTRUCTIONS TO ACCOMPLISH THE PERMANENT REPAIR OF CORROSION DAMAGE IN MULTIPLE REGIONS ON THE UPPER FLANGE OF THE P/N 170-21769-403 FR17 CROSSBEAM IN THE CABIN FLOOR STRUCTURE OF THE FORWARD FUSELAGE. REFERENCE FIGURES 1-2 FOR DETAILS. THE DAMAGE WILL BE REPAIRED BY CUTOUT AND DOUBLER REPAIRS IN EACH AREA IN ACCORDANCE WITH SRM PART II 53-00-10/REPAIR 03P. BECAUSE THE FR17 FLOOR CROSSBEAM IS PSE AND THIS EO IS RESTORING STRENGTH, ACCOMPLISHMENT OF THIS EO HAS BEEN CLASSIFIED AS A MAJOR REPAIR. EO E175-53MR-221.2 IS BEING ACCOMPLISHED BY WO 2785391