What was found
MAIN CABIN, STA 480, RT SIDE CREASE BEAM CHORD HAS CORROSION (OUT OF LIMITS). REMOVED CORROSION AND CHECKED LIMITS IAW SRM 51-10-02/53-30-13. FOUND TO BE OUT OF LIMITS IAW SRM 53-30-13, FIG.101,DETAIL 3 AT BS 450-665, RBL 60. ORIGINAL MATERIAL THICKNESS- .070" / AFTER REWORK- .059" / REMOVED- .011". REMOVED CREASE BEAM IAW SRM 51-40-02. FABRICATED NEW CREASE BEAM, BAC 1515-553, BATCH NR 0001725078 / SRM 51-10-02. LOCATED AND DRILLED CREASE BEAM IAW SRM 51-10-02. TREATED AND PRIMED CREASE BEAM IAW SRM 51-21-01. PAINTED IAW AMM 51-21-00-7. INSTALLED NEW CREASE BEAM AT BS 450-665, RBL 60, WL 208, IAW SRM 51-40-02. THIS REPAIR IS CLASSIFIED AS A CAT "A" MAJOR REPAIR.