What was found
LCQ - MAJOR REPAIR - DURING C-11 CHECK CORROSION WAS FOUND ON FLOOR SUPPORT AT BS 1660 TO BS 1680, LBL 56. MAINTENANCE REMOVED DAMAGED FLOOR SUPPORT AT BS 1660 TO BS 1680, LBL 56. FABRICATED NEW FLOOR SUPPORT AND INSTALLED REPAIR IAW B757-200 SRM 51-40-02, PG. 11-12.