As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN AVIONICS BAY FS310.00 FRAME CORRODED BETWEEN STR 27 AND STR 25R (C-CHECK RO 10/22/2021) REPLACED MAIN AVIONICS BAY FS310.00 FRAME FROM STR 23L TO STR 25R REF CRJ900 SRM 53-00-06-201-006-A01. COMPLIED WITH 51-900-1002-SKY. LEAK CHECK GOOD.