As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INITIAL INSPECTION. CORROSION ON FLOOR SUPPORT IN STA. FS= 280 BETWEEN STRG 26LH TO 26RH AT MAIN AVIONICS COMPARTMENT.(TCI:53-20-304) (E/E). FLOOR SUPPORT IN STA. FS= 280 BETWEEN STRG 26LH TO 26RH AT MAIN AVIONICS COMPARTMENT WAS REPLACED PER CRJ-900 SRM 51-42-06 AND SRM 51-42-20 CORROSION LEVEL 2.