What was found
MCN - DURING C11 CHECK DISCOVERED CORROSION, LEVEL 2 EXFOLIATION, ON CABIN FLOOR WEB BS 1354-1358, BL 64L, WL 208. MAINTENANCE REMOVED CORROSION AT BS 1354 TO BS 1358, BL 64L, WL 208 IAW BOEING 757-200 SRM 51-00-53-2. CORROSION FOUND OUT OF SRM LIMITS. FABRICATED CABIN FLOOR WEB IAW BOEING DWG 146N8322. INSTALLED FABRICATED CABIN FLOOR WEB AT BS 1354 TO BS 1358, BL 64L, WL 208 IAW BOEING 757-200 SRM 51-40-02-OG FIGS 3, 8, 12.