As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR DD6 INTERCOSTAL IS CORRODED BETWEEN FS 320 AND FS 338. C-CHECK RO 10/13/2020. REMOVED PAX DOOR INTERCOSTAL BETWEEN FS 320 AND FS 338 LOCATED AND DRILLED NEW SERVICEABLE INTERCOSTAL, WET INSTALLED INTERCOSTAL DD6 P/N 601R318057-1, IAW CRJ 200 SRM. SEALED AND PAINT, IAW CRJ 200 SRM. TASK CARD COMPLETED, M-337 ATTACHED. WEIGHT AND BALANCE NOT AFFECTED.