As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON STRINGER 25RH IN STA. FS=295.00 TO FS= 310.00 AT MAIN AVIONICS COMPARTMENT DUE TO EXCESSIVE CORROSION ON STRINGER 25RH IN STA. FS=295.00 TO FS= 310.00 AT MAIN AVIONICS COMPARTMENT WAS REPLACED PER CRJ900 SRM 51-10-06-001-001-A01, SRM 51-42-06-001-001-A01. AND SRM 51-42-21-001-001-A01