What was found
FORWARD CARGO BAY CORROSION ON INTERCOSTAL UNDER LEFT CARGO FLOOR Z CHANNEL STA 500C-500D LBL 25 WL 160 NEAR SCREW HOLES, MARKED. REMOVED DAMAGED FWD CARGO BAY INTERCOSTAL UNDER LEFT CARGO FLOOR Z CHANNEL BS 500C-500D LBL25. LOCATED, DRILLED, AND INSTALLED NEW INTERCOSTAL, IAW SRM 51-40-02-0G-0, SRM 51-40-05-0G-0 AND DWG 143A7505 81142U 09/16/2020. CORROSION FOUND OUT OF LIMITS, IAW SRM 53-00-53-1A-2 FIG 103 DETAIL D.