As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT PRESSURE FLOOR SILL HAS (3) AREAS OF CORROSION ON THE SILL SKIN BETWEEN FS 424.00 AND FS 439.00. C-CHECK RO 11/11/2020. REPAIR TO RT PRESSURE FLOOR SILL WAS COMPLETED, IAW BOMBARDIER REO, AS DOCUMENTED ON ATTACHED CONTINUATION CARD. M-337 AND TASK CARD ATTACHED. NO CHANGE TO WEIGHT AND BALANCE.