What was found
DURING C-3 CHECK, INSPECTION REPORTED BEAM IN FWD BULKHEAD, AFT CARGO COMPARTMENT, CORRODED AT NUT PLATE ATTACHMENT POINT FOR LOWER DUCT SHROUD BRACKETS AT LBL 20 AND WL 160. REMOVED DAMAGED AREA, FABRICATED AND INSTALLED REPLACEMENT PARTS PER SRM 51-40-4.