As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON STGR 27 FROM STA FS:280 TO FS:295 AT MAIN AVIONICS COMPARTMENT (E/E) (TCI 100-09) SUMMARY OF NRC 00132: LEVEL 2 OF CORROSION, ON STGR 27 FROM STA FS:280 TO FS:295 AT MAIN AVIONICS COMPARTMENT WAS REPLACED PER CRJ-900 SRM 51-42-06-001-001-A01 AND 51-42-20-001-001-A01.