As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
* CORROSION DETECTED ON "INTERCOSTAL" AT STGR 21L LEVEL UNDER PAX DOOR SURROUND STRUCTURE, BETWEEN F.S. 333.00 AND F.S. 349.00 (MARKED). (C-CHECK RO 5/25/2021) REMOVED AND REPLACED INTERCOSTAL AT STGR 21L UNDER PAX DOOR BETWEEN F.S. 333.00 AND 349.00, REF CRJ 900 SRM 51-42-06-001-001-A01 AND DWG SH670-31810 REV Y, LEAK CHECK GOOD. / COMPLIED WITH SKYWEST TASK CARD 51-900-1002-SKY (CL600-2D24) STRUCTURAL MAJOR REPAIR / COMPLIED WITH SKYWEST FORM M-337