As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR INTRCOSTAL AT DD5F FOUND TO BE CORRODED (C-CHECK RO 6/29/2021) DAMAGED INTERCOSTAL WAS REMOVED AND A NEW INTERCOSTAL INSTALLED IAW CRJ 700 SRM 51-42-06-001-001-A01 AND REO 670-52-11-1227 REV -- DATED 2021-04-27. M-337 AND TASK CARD ATTACHED WITH NO CHANGE TO WEIGHT AND BALANCE