As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON PAX DOOR INTERCOSTAL DD-1 (C-CHECK - RO 6/19/21) / DETERMINED CORROSION EXFOLIATED MATERIAL BEYOND 50% OF MATERIAL THICKNESS. FOUND TO BE OUT OF LIMITS REF. CRJ200 SRM 52-00-00. REMOVED INTERCOSTAL DD-1 REF. CRJ200 SRM 51-42-06, AND CRJ200 SRM 51-42-21. INSTALLED NEW INTERCOSTAL DD-1 REF. CRJ200 SRM 51-42-06 AND DWG 601R31702 REV. -N. COMPLIED WITH 51-900-1003-SKY