What was found
UPON REMOVAL OF INTERCOSTAL FWD CARGO COMPARTMENT STR 23L HAS SIGNS OF CORROSION ON THE AFT FLANGE FOOT AT BS 517-533. REPAIR PERFORMED STR 23LT ON FWD CARGO COMPARTMENT FS517-FS533 IAW REO 670-53-31-1231, REV--, REO 670-53-31-1231 REV-P1, REO 670-53-31-1231, REV-P2, IAW SRM 51-42-06, 51-21-06, 53-31-03, 51-42-21.