As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR INTERCOSTAL DD4 FS338.00 - FS347.25 IS CORRODED (C-CHECK RO 11/5/2021) INSTALLED NEW INTERCOSTAL DD4 BETWEEN FS338.00 AND FS347.25. REF: CRJ-700 SRM 51-42-06-001-001-A01 AND DRAWING 601R31702 REV N LEAK CHECK GOOD. COMPLIED WITH 51-900-1002-SKY