What was found
DURING BASIC CHECK IN SAT, INSPECTION DISCOVERED THE FWD SERVICE DOOR CUT OUT LOWER BEAM, PN 170-03599-005, TO HAVE CORROSION DAMAGE. THE CORROSION DAMAGE IS LOCATED IN MULTIPLE DEPTHS & LOCATIONS, REF FIG 2 FOR DAMAGED DIMENSIONS & LOCATIONS. THE PERMANENT REPAIR ACCOMPLISHMENT BY REPLACEMENT OF THE CORRODED THRESHOLD BEAM WILL BE ACCOMPLISHED IAW ORIGINAL PRODUCTION DWGS & SRM STANDARD PRACTICES. ENGINEERING HAS CLASSIFIED THIS REPAIR AS A MAJOR REPAIR. ACCOMPLISHMENT OF THIS MAJOR REPAIR WAS ON EO E175-53MR-261 UNDER WO 2068772.