What was found
(AIRCRAFT 6716, L/P 1330809) CORROSION ON INTERCOSTAL BTW STA 1300-1320 AND RBL 15.5, AFT CARGO COMPARTMENT. FLOOR STRUCTURE (C2). CORRECTIVE ACTION: CORROSION LEVEL 2, INTERCOSTAL BTW STA 1300-1320 AND RBL 15.5, AFT CARGO COMPARTMENT. FLOOR STRUCTURE WAS REPLACED. PER. B757-200 SRM 51-40-02. PAR 4.