As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
* AVIONICS BAY INTERCOSTAL HAS CORROSION AT STR21L IN BETWEEN FS 319.70 TO FS 333.0 (C-CHECK) RO 2/1/2021 REMOVED AND REPLACED INTERCOSTAL/BACKUP SILL AT STR21L BETWEEN FS310.00 AND FS333.00 REF. BOMBARDIER DWG SH670-31810 REV AE AND CRJ900 SRM 51-42-06-001-001-A01. 51-900-1002-SKY (CL600-2D24) COMPLIED WITH.