As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR AFT DD3 INTERCOSTAL HAS CORROSION (C-CHECK) RO 3/4/2021 REMOVED AND INSTALLED NEW AFT DD3 INTERCOSTAL IAW CRJ 900 SRM 51-42-06-001-001-A01 AND BOMBARDIER DWG 601R31702 REV. N. / SEE CONTINUE CARD FOR DETAILS. / COMPLIED WITH SKYWEST TASK CARD #51-900-1002-SKY, PRESSURE CHECK GOOD.