What was found
DURING A ROUTINE C CHECK INSPECTION, THE RT FUSELAGE AFT CENTER SECTION FLOORBEAM HAS CORROSION DAMAGE AT STA 1300.000 RBL 48 INCH. MAJOR REPAIR WAS ACCOMPLISHED. REMOVED CORROSION IAW DC8 SRM 51-1-8 PGS 17-18. FOUND OUT OF LIMITS IAW EC8 SRM 53-2-0 PAGE 2P. REMOVED CORRODED AREA IAW DC8 SRM 51-2-1 FIG 1 PAGES 8-14 (SHEET 7). FABRICATED FILLER (AL 7075 76. 0.125"0 )+ REPAIR ANGLE (EXTRUSION 7075.TG 5110.0150") IAW DC8 SRM 51-2-1 FIG 1 (SHEET 7). CLEANED TREATED AND PRIMED AREA, FILLER & REPAIR ANGLE IAW DC8 SRM 51-1-8B APPLIED PRC SEALANT ON FAYING SURFACES IAW DC8 SRM 51-1-11 PAGE 9. INSTALLED FILLER AND REPAIR ANGLE WITH NEW FASTENERS IAW DC8 SRM 51-2-1 FIG 1(SHEET 7,12) DC8 SRM 51-1-20D PG 9.