As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE PASSENGER DOOR INTERCOSTAL BETWEEN FS338.00 AND FS347.25 AT DD5 HAS CORROSION (MARKED). C-CHECK RO 9/1/2020. REMOVED AND INSTALLED NEW INTERCOSTAL AT DD5 BETWEEN FS338.00-FS347.25. REF DWG AND CRJ 200 SRM. SEE CONTINUATION CARDS FOR DETAILS.