What was found
MAIN CABIN CREASE BEAM CHORD BS 680 -740, RBL 66 HAS CORROSION. REMOVED CORROSION AND FOUND OUT OF LIMITS. REMOVED CREASE BEAM, RECEIVED NEW PART NR 143N8328U54 IAW SRM 53-30-13. INSTALLED NEW CREASE BEAM PART IAW SRM 51-40-02, AND 51-10-02, FS 680-740, RBL 66.