As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER DOOR SILL AFT CAP ANGLE HAS CORROSION AROUND FASTENER HOLE. C-CHECK RO 9/5/2020. EVALUATED PASSENGER DOOR SILL AFT CAP ANGLE. FOUND TO BE OUT OF LIMITS DUE TO 100% MATERIAL LOSS AROUND FASTENER HOLE, REF CRJ 700 SRM. REPLACED WITH NEW SERVICEABLE PASSENGER DOOR SILL AFT CAP ANGLE P/N SH670-31821-6 REF SRM AND DWG. COMPLIED WITH TASK CARD.