As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LIGHT SURFACE CORROSION ON PRESSURE FLOOR SILL AT FS 449.85. REF: 20541560 (C-CHECK) RO 4/30/2020 REMOVED CORROSION ON FLOOR SILL PANEL AT F.S 449.85 RIGHT SIDE, ORIGIONAL MATERIAL THICKNESS IS 0.055" MATERIAL REMOVED 0.001" AND REMAINING THICKNESS 0.054" IAW CRJ 200 SRM NDTM REO.COMPLIED WITH SKY CARD (CL600-2B19) STRUCTURAL MAJOR REPAIR. WEIGHT AND BALANCE NOT EFFECTED.