What was found
C11 SYS6 CHECK LEVEL 2 EXFOLIATION CORROSION ON AFT CABIN FLOOR STRUCTURE SHEAR WEB BETWEEN FRAME 69 TO FRAME 70, Z 500 & Y 1350. REPLACED AFT CABIN FLOOR STRUCTURE SHEAR WEB BETWEEN FRAME 69 TO FRAME 70, Z 500 & Y 1350 IAW SRM 51-42-00.