As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR MID DD4 INTERCOSTAL FOUND TO HAVE CORROSION (C-CHECK RO 9/27/2021) REMOVED AND REPLACED PAX DOOR MID DD4 INTERCOSTAL, REF CRJ 900 SRM 51-42-06-001-001-A01, 51-42-21-001-001-A01 AND DWG 601R31702 REV N. LEAK CHECK GOOD / COMPLIED WITH SKYWEST TASK CARD 51-900-1002-SKY (CL600-2C10) STRUCTURAL MAJOR REPAIR / COMPLIED WITH SKYWEST FORM M-337