As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"[ IN REFERENCE NRC 0046 ] INITIAL INSPECTION. CORROSION ON STRINGER 25 RH IN STA. FS= 337 TO FS= 364 AT MAIN AVIONICS COMPARTMENT. (E/E) [ TA SK 900-53-140-300 APPENDIX A ] TCI: 100-09 " "LEVEL CORROSION 2. STRINGER 25RH IN STA. FS= 337 TO FS= 364 AT MAIN AV IONICS COMPARTMENT WAS REPLACED PER CRJ-900 S.R.M. 51-42-06-001-001-A0 1 AND CRJ900 SRM 51-42-20-001-001-A01. "