What was found
MAIN CABIN RT CUSP WEB CORRODED BETWEEN STA 580 AND STA 600. REMOVED CORROSION AT MAIN CABIN RT CUSP WEB BETWEEN STA 580 TO STA 600 AND AFTER EVALUATION FOUND CUSP WEB OUT OF LIMITS, IAW B757 SRM 51-10-02, 53-30-13-1A FIG 101 DET VIII. FABRICATED AND INSTALLED NEW CUSP WEB, IAW B757 SRM 51-30-01-0G, 51-40-02-OG AND BOEING DWG NR 143N5520 REV B AND REV BM.