As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER DOOR CENTER FLOOR SILL SUPPORT ANGLE CORRODED AROUND NUT PLATES. REMOVED THE PAX DOOR CENTER FLOOR SILL SUPPORT ANGLE ASSY IAW CRJ900 SRM 51-42-06-001-001-A01 AND 51-42-21-001-001-A01, LOCATED, DRILLED AND INSTALLED NEW SERVICEABLE ANGLE IAW CRJ900 SRM'S 51-42-06-001-001-A01, 51-40-11-001-001-A01, 51-42-21-001-001-A01 (P/N: SH670-31875-7).