As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR AFT DD5 INTERCOSTAL FOUND TO BE CORRODED. REQUIRES REPLACEMENT. PN: 601R31902-317A. REMOVED UNSERVICABLE PAX DOOR INTERCOSTAL AND INSTALLED A SERVICEABLE PAX DOOR INTERCOSTAL P/N 601R31902-317A IAW CRJ 700 SRM 51-42-06-001-001-A01.