As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOOR SUPPORT BETWEEN LH & CENTER OMEGA BEAM HAS CORROSION ON UPPER SURFACE AT FRAME 20- REMOVED FLOOR BOARD SUPPORT BETWEEN LH & CENTER OMEGA BEAM AT FR20. INSTALLED FLOOR BOARD SUPPORT BETWEEN LH & CENTER OMEGA BEAM AT FR20.