What was found
DURING ROUTINE C-CHECK INSPECTION, AFT CARGO COMPT - FLOORBEAM UPPER FLANGE CORRODED; STA 1500.000 RBL 42 - RBL 50. PERFORMED MAJOR REPAIR IAW DC8 SRM 51-2-1 FIG 1 (SHEET 9), TR 51-130 DATED 01-26-04. REMOVED FASTENERS IAW DC8 SRM 51-1-21. REMOVED DAMAGED SECTION IAW DC8 SRM 51-2-1 FIG 1 (SHEET 9). FABRICATED REPAIR ANGLE (EXTRUSION 7075T6511 0.170) & FILLER (EXTRUSION 7075T6511) IAW DC8 SRM 51-2-1 FIG 1 (SHEET 9, 12), DC8 SRM 53-7-2 FIG 9 ITEM C, DC8 SRM 51-2-0 FIG 50 (SHEET 73). CLEANED, TREATED AND PRIMED IAW DC8 SRM 51-1-8B. APPLIED SEALANT TO FAYING SURFACES IAW DC8 SRM 51-1-11. INSTALLED REPAIR PARTS IAW DC8 SRM 51-2-1 FIG 1 (SHEET 9, 12), DC8 SRM 51-1-21, DC8 SRM 51-1-20D, DC8 SRM 51-3-1 (TORQUE).