As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON FLOOR SUPPORT AT FWD WET AREA BS282 LBL12 WL208.<[01] REMOVED AN REPLACED INTERCOSTAL BETWEEN BS277-BS294 LBL12 IAW B737-7 SRME 51-40-02; SRM 51-40-05 AND DWG141A5600 REV: N ID:0001 (NEW INTERCOSTAL P/N: 141A5650U3 LOT: 1591394-1)