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 (5) LOCATIONS ON THE FLOOR SKIN BETWEEN FS 473.15 AND FS 513.00. C-CHECK RO 11/11/2020. REPAIRED LT PRESSURE FLOOR SILL AT (5) LOCATIONS ON THE FLOOR SKIN BETWEEN FS 473.15 AND FS 513.00, IAW BOMBARDIER REO WEIGHT AND BALANCE NOT AFFECTED. M-337 AND SKYCARD ATTACHED.