As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION FOUND ON PASSENGER DOOR CENTER INTERCOSTAL DD2 P/N : 601R318053-3. (C-CHECK RO 11/10/2021) REMOVED AND INSTALLED NEW PAX DOOR INTERCOSTAL DD2 REF. CRJ-700 SRM 51-42-06-001-001-A01, 51-42-21-001-001-A01, AND DWG#601R31702 REV. N. COMPLIED WITH TASK CARD 51-900-1002-SKY.