As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON REMOVAL OF PAX DOOR FRAME F/S 320.00 FOUND EXFOLIATED CORROSION AT LOWER CHANNEL P/N 601R318074-5 (C-CHECK RO 8/18/2021) REMOVED AND REPLACED WITH NEW THE LOWER CHANNEL ON PAX DOOR REF DWG 601R31702 REV. N AND CRJ 900 SRM 51-42-06-001-001-A01 AND CRJ 900 SRM 51-42-21-001-001-A01. LEAK CHECK GOOD / COMPLIED WITH SKYWEST FORM M-337 / COMPLIED WITH SKYWEST TASK CARD 51-900-1002-SKY (CL 600 2D24) STRUCTURAL MAJOR REPAIR