As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER DOOR, CRACKED INTERCOSTAL AFT SIDE OF DOOR INSIDE OF THE 2ND ACCESS HOLE FROM BOTTOM, DISCOVERED DURING C-CHECK INSPECTION. INSTALLED AND SEALED NEW INTERCOSTAL ON AFT SIDE OF DOOR INSIDE OF THE 2ND ACCESS HOLE FROM BOTTOM OF PAX DOOR IAW CRJ200 SRM 51-42-06 PG 1.