What was found
AFT LWR CARGO COMPT INTERCOSTAL INBOARD OF STR 26L, BETWEEN FS 1140 TO 1166, UPPER AND LWR FLANGES CORRODED. INSTALLED FABRICATED FLANGES OF INTERCOSTAL IAW SRM 51-30-2. INSTALLED FABRICATED DOUBLER AT STA 1140 -1166, STR 26L IAW SRM 51-30-2.