As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT PRESSURE FLOOR SILL IS CORRODED AT (4) LOCATIONS ON THE FLOOR SKIN BETWEEN FS 513.00 AND FS 544.00. C-CHECK RO 11/11/2020. REPAIRED LT PRESSURE FLOOR SILL CORROSION AT (4) LOCATIONS ON THE FLOOR SKIN BETWEEN FS 513.00 AND FS 544.00. REFERENCE CONTINUATION FOR WORK PERFORMED.