What was found
DURING A SCHEDULED MAINTENANCE VISIT, LEVEL 2 CORROSION WAS DISCOVERED ON A FLOORBEAM LOCATED IN THE FORWARD CARGO COMPARTMENT AT FS 500 PLUS 40 INCH BL 12R, AREA OF CORROSION IS APPROXIMATELY 3 INCHES BY 1 INCH ON THE FRAME LOWER FORWARD FLANGE. REMOVED THE CORRODED SECTION AND FABRICATED AND INSTALLED A REPAIR ANGLE IAW BOEING 737 SRM 53-10-4 FIGURE 7, 6, 8, AND 9. (M)