As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN AVIONICS BAY STR 22L CORRODED BETWEEN FS333.00 AND FS349. (C-CHECK RO 7/28/2021) REPLACED MAIN AVIONICS BAY STR 22L BETWEEN FS333.00 AND FS349.00 REF DWG SH670-31350 REV. A, CRJ900 SRM 53-00-03-201-001-A02, AND CRJ900 SRM 51-42-06-001-001-A01. CHECKS GOOD. COMPLED WITH 51-900-1002-SKY.