As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR INTERCOSTAL, PN 601R31902-317, IS CORRODED. (C-CHECK RO 4/25/2021) REMOVED AND REPLACED CORRODED PAX DOOR INTERCOSTAL IAW CRJ 200 SRM 51-40-11 AND 51-42-06 REV 38 DATED JUL 10/19, DWG 601R31902 AND SKY CARD 51-900-1003-SKY AND ATTACHED FORM M-337 / NO WEIGHT CHANGE PART FOR PART REPLACEMENT.