As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*AVIONICS BAY INTERCOSTAL AT STR26L IN BETWEEN FS 349.0 AND FS 364.0 HAS CORROSION (C-CHECK) RO 2/1/2021 REMOVED AND REPLACED INTERCOSTAL AT STGR 26L BETWEEN FS 349.00 AND FS 364.00. REF. DWG SH670-32050. REV J, CRJ 900 SRM 51-42-06-001-001-A01, SRM 51-42-21-001-001-A01. / COMPLIED WITH TASK CARD 51-900-1002-SKY.