What was found
MAIN CARGO COMPARTMENT STA 580 FLOORBEAM RBL 45 FROM C/L, UPPER CHORD OF BEAM CORRODED AFT SIDE AT FASTENERS ON FLOORBEAM. CORROSION REMOVED, THICKNESS LESS THAN ALLOWABLE LIMITS AFTER REPAIR. INSTALLED STRAP PER AARD 53-10-07-2 FIGURE 1. REPAIR INSTALLED AFTER ALODING AND PAINT, WET WITH SEALER AT ASSEMBLY.