As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR INTERCOSTAL DD6 CORRODED BETWEEN FS 327.763 AND FS 338.963. C-CHECK RO 11/11/2020. INSTALLED SERVICEABLE PAX DOOR INTERCOSTAL DD6, IAW CRJ 200 SRM. COMPLETED TASK CARD AND ATTACHED COMPLETED FORM 337. NO WEIGHT CHANGE, REFERENCE CONTINUATION FOR WORK PERFORMED.