As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FORWARD CARGO PIT AFT BULKHEAD STRUCTURE STA 500I LOWER CHORD HAS CORROSION ON UPPER SURFACE LBL25-RBL16 WL157 / REMOVED CORROSION ON FWD CARGO PIT AFT BULKHEAD STRUCTURE STA 500I LOWER CHORD NO FOUND ALLOWABLE LIMITS IN SRM AND INSTALLED NEW LOWER CHORD (SUPPORT RAIL) P/N 143A9485-35 IAW B737-800 SRM 51-40-02-0G-0; SRM 51-40-05-0G-0 AND DWG# 143A9481 REV: A ATAG WN9107 143A9485-35