As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOTH GUSSET PLATES CONNECTING FWD INTERCOSTALS TO MAIN AVIONICS BAY DOOR SURROUND STRUCTURE ARE CORRODED (C CHECK RO 3/11/2022) REMOVED AND REPLACED TWO (2) GUSSET PLATES (P/NS: 601R31049-55) FWD OF AVIONIC BAY DOOR IAW CRJ-200 SRM 51-42-21