What was found
THIS EO IS BEING ISSUED TO PROVIDE INSTRUCTIONS TO ACCOMPLISH A PERMANENT REPAIR OF CORROSION DAMAGE TO THE UPPER FLANGE OF THE CENTER FUSELAGE II LT FLOORBEAM (P/N 170-65669-003) AT FR86. THE DAMAGE MEASURES APPROXIMATELY 0.03 INCH IN DIAMETER TO A DEPTH OF 0.026 INCH (REF ETD2018-170-132983, FIGURE 1). REQUESTED AND RECEIVED A PERMANENT REPAIR IN THE FORM OF ETD2018-170-132983 WHICH ALLOWS THE DAMAGE TO BE REPAIRED BY FILLER AND DOUBLER INSTALLATION. BECAUSE THE FLOORBEAM IS PSE AND THE REPAIR IS RESTORING STRENGTH, ACCOMPLISHMENT OF THIS EO HAS BEEN CLASSIFIED AS A MAJOR REPAIR. THIS EO WILL BE ACCOMPLISHED ON WO 2590743.