As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
***CORROSION*** FWD CARGO BAY BS500D RBL-24 TO LBL-24 WL155 FLOOR TO BULKHEAD SUPPORT UPPER SURFACE IS CORRODED AT FASTENER HOLES. REJECTION: WRONG FASTENERS USED TO INSTALL SUPPORT. DRAWING SPECIFIES BAC R15BA*D RIVET. THERE ARE SCREWS INSTALLED. / INSTALLED SUPPORT AT FCB BS 500D RBL-24 TO LBL 24 WL 155 IAW SRM 51-40-02 & DWG 143A7902 REV. E 59191U 06JAN20