What was found
AFT CARGO BAY, BS 1280 TO 1300, LBL 18 FLOOR SUPPORT HAD CORROSION ON THE UPPER ANGLE IAW B757-200 51-40-02. LOCATED, DRILLED, AND INSTALLED A NEW FLOOR SUPPORT IAW SRM 51-40-05, SRM 51-20-01, SRM 51-20-01, SRM 51-40-02, AND SRM 51-40-02.