As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN AVIONICS BAY STR 22R CORRODED BETWEEN FS319.70 AND FS333.00 (C-CHECK RO 9/8/2021) REMOVED & REPLACED WITH NEW MAIN AVIONICS BAY STR 22R BETWEEN FS319.70 AND FS333.00 REF CRJ-900 SRM 51-42-06-001-001-A01 AND DWG#SH670-31630 REV K. COMPLIED WITH 51-900-1002-SKY.PRESSURE LEAK CHECK GOOD.