As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT FS 409.00+128 TO FS 559.00 UPPER FLOOR SILL PANEL HAVE NUMEROUS AREAS OF CORROSION, AS MARKED. C-CHECK RO 9/12/2020. REMOVED CORROSION FROM 17 LOCATIONS ON LT UPPER FLOOR SILL PANEL BETWEEN FS 409.00+128 AND FS 559.00. ALL 17 BLEND LOCATIONS ARE WITHIN LIMITS, REF CRJ200 SRM REO. COMPLIED WITH TASK CARD.