As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INITIAL INSPECTION: CORROSION ON INTERCOSTAL 27(RH SIDE) AND 26R BTW. FS349 AND FS364 (FWD TO E/E DOOR) [IN REFERENCE TASK 900-53-140-300 APPENDIX A].(E/E)(TCI 100-09) SUMMARY:INTERCOSTAL 27RH AND 26RH BTW. FS349 AND FS364, WERE REPLACED PER CRJ900 SRM 51-42-21-001-001-A01 AND 51-42-06-001-001-A01. LEVEL CORROSION II. ADDITIONAL PART NUMBER INSTALLED SH670-32077-4