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 22 RH BTW FS=280 / FS=349 AT INTERNAL STRUCTURE OF MAIN AVIONICS COMPARTMENT (SM) (TCI 53-20-319). SUMMARY: ON NRC. 00288, CORROSION LEVEL 2, STGR 22 RH BTW FS=280 / FS=349 AT INTERNAL STRUCTURE OF MAIN AVIONICS COMPARTMENT WAS REPLACED PER CRJ-900 SRM 51-42-06-001-001-A01 AND 51-42-20-001-001-A01.