As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"INITIAL INSPECTION: CORROSION ON STGR 20RH BTW FS 280 TO 310 OF THE MAIN AVIONICS COMPARTMENT (SM) "SUMMARY:STGR 20RH BTW FS 280 TO 310 OF THE MAIN AVIONICS COMPARTMENT (SM) WAS REPLACED PER CRJ-900 SRM 51-42-06-001-0001-A01 AND SRM 51-42-21-001-001-A01