What was found
DURING C-11 CHECK CORROSION WAS FOUND ON CABIN FLOOR PAN AT BS 1718, RBL 14 TO RBL 40. MAINTENANCE REMOVED CORROSION, MATERIAL LOSS OUT OF LIMITS AT BS 1718, RBL 23. TREATED AND PRIMED AREA, FABRICATED AND INSTALLED REPAIR DOUBLER IAW B757-200 SRM 53-60-51, PG. 204-208.