As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"AWR. IN REF EO R25120 AFTER INSULATION REMOVAL, CORROSION WAS FOUND ON STRINGER R23 BTW FS 319-349 AT MAIN AVIONICS COMPARTMENT.(TCI 100-09). "STRINGER 23RH BTW FS 280 TO FS 379 WAS REPLACED PER CRJ-900 SRM-51-42-06-001-001-A01 (LEVEL CORROSION 2). "