As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INITIAL INSPECTION. CORROSION ON STRINGER SPLICE 25RH AND 26RH IN STA. FS= 329 TO FS= 339 AT MAIN AVIONICS COMPARTMENT.(TCI:100-09) (E/E). STRINGER SPLICE 25RH AND 26RH IN STA. FS= 329 TO FS= 339 WERE REPLACED PER REPLACE PER CRJ-900 SRM 51-42-06-001-001-A01