As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR LOWER SILL ANGLE IS CORRODED BETWEEN F.S. 310 TO F.S. 349. LOCATED AND DRILLED NEW PAX DOOR LOWER SILL P/N: SH670-31875-7S. IAW CRJ900 SRM 51-40-11-001-001-A01. INSTALLED NEW SERVICEABLE PAX DOOR LOWER SILL P/N: SH670-31875-7S. IAW CRJ900 SRM 51-42-06-001-001-A01.