As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUPPORT TASK: MAIN CABIN FLOOR SUPPORT AT STA 340 LBL20-LBL32 HA S CORROSION ON UPPER SURFACE. TRANSCRIBED FROM HAECO GSO NRC 92 82960. INSTALLED FLOOR SUPPORT STA 340 LBL 20-32 IAW BOEING DWG 141N5170 REV C AND B757 200 SRM 51-40-02. HAECO GSO MECH V932595 INSP QC295