As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT HAND PRESSURE FLOOR SILL PANEL FROM APPROXIMATELY FS 409.0+133 TO FS559.0 HAS SEVERAL SPOTS OF CORROSION. (C-CHECK) RO: 09/26/2019 BLENDED OUT CORROSION ON LEFT HAND PRESSURE FLOOR SILL PANEL FROM APPROXIMATELY FS 409.0+133 TO FS559.0 IAW REO. LEAK CHECK GOOD.