What was found
C11 SYS6 CHECK LEVEL 2 EXFOLIATION CORROSION ON AFT CABIN FLOOR STRUCTURE Z BEAM FWD SECTION BETWEEN FRAME 66 TO FRAME 69, Z 500 & Y 1162.5. REPLACED AFT CABIN FLOOR STRUCTURE Z BEAM FWD SECTION BETWEEN FRAME 66 TO FRAME 69, Z-500 & Y 1162.5 IAW SRM 51-40-00 & DWG D53472780.