As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR MIDDLE INTERCOSTAL AT DD3 IS CORRODED (C-CHECK) RO 3/10/2021 REMOVED AND INSTALLED SERVICEABLE PAX DOOR MIDDLE INTERCOSTAL AT DD3 IAW CRJ 200 SRM 51-40-11, 51-42-06 AND 51-42-21 REV 38B DATED 11/25/2020. COMPLIED WITH TASK CARD 51-900-1003-SKY (CL600-2B19). FORM 337 COMPLETED. PART FOR PART REPLACEMENT, NO WEIGHT CHANGE. REFERENCED DRAWING 601R31702 FOR FASTENER CALL OUT.