As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON PAX DOOR INTERCOSTAL DD6 UPPER AND LOWER SIDE REMOVED AND REPLACED INTERCOSTAL AT DD6 FROM FS320-FS338 WITH NEW P/N 601R318057-1 REF DWG 601R31702 REV-N, CRJ 900 SRM 51-42-06-001-001-A01 AND CRJ 900 SRM 51-42-21-001-001-A01