As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD PIT LATERAL FLOOR SUPPORT UPPER SURFACE CORRODED AT STA 500I FROM RBL24 TO LBL24 AND W/L157 / NO LIMITS PUBLISHED; FOUND PART OUT OF LIMITS. 100% MATERIAL LOSS ON FWD PIT LATERAL FLOOR SUPPORT (RAIL) STA 500I RBL 24 TO LBL 24. REMOVED AND REPLACED RAIL P/N 143A9485-35 TAG # WN8765 IAW B737 SRM 51-40-02-0G-0 AND DWG 143A9481 REV. -