What was found
DURING BASIC CHECK, INSPECTION DISCOVERED THE AFT FUSELAGE R2 SERVICE DOOR THRESHOLD BEAM, PN 170-65639-003 -005 TO HAVE CORROSION DAMAGE. THE CORROSION DAMAGE IS LOCATED IN MULTIPLE LOCATIONS, REF FIGURE 1 FOR DAMAGE DIMENSIONS & LOCATIONS. THE PERMANENT REPAIR ACCOMPLISHMENT BY REPLACEMENT OF THE CORRODED THRESHOLD BEAM, PN 170-65639-003 -005, WILL BE ACCOMPLISHED IAW ORIGINAL PRODUCTION DWGS & SRM STANDARD PRACTICES. SUPPLEMENTAL FOLLOW UP INSPECTIONS ARE NOT REQUIRED DUE TO DIRECT REPLACEMENT OF THE PART. ENGINEERING HAS CLASSIFIED THIS REPAIR AS A MAJOR REPAIR. ACCOMPLISHMENT OF THIS MAJOR REPAIR WAS ON EO E175-53MR-212 UNDER WO 1957719.