As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERCOSTAL BETWEEN FS310.00 AND FS333.00 AT STGR 23R HAS CORROSION ON THE AFT FLANGE COMMON TO RH LOWER SPLICE ANGLE. REMOVED AND REPLACED INTERCOSTAL ATTACH ANGLE. REF CRJ200 SRM 51-42-06 AND 51-42-21, DWGS 601R44020 REV A AND 601R44010 REV K.