As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR SURROUND STRUCTURE, LOWER SILL ANGLE HAS CORROSION. ( AS MARKED (C-CHECK) RO 5/10/2020 REMOVED PAX DOOR SURROUNDING STRUCTURE, LOWER SILL ANGLE P/N: SH670-31875-3 AND REPLACED WITH NEW REFERENCING CRJ 900 SRM, AND BOMBARDIER DRAWING. COMPLIED WITH SKYWEST TASK CARD. COMPLETED SKYWEST FORM M-337.