As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON MID CAP ANGLE AT PASSENGER DOOR SURROUND STRUCTURE LOWER SILL.(SM)(CPAX)(53-20-319). "MID CAP ANGLE AT PASSENGER DOOR SURROUND STRUCTURE LOWER SILL WAS REPLACED FOR A NEW ONE (P/N: SH670-31825-9) PER CRJ-900 SRM 51-41-02-001-001-A01.