As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORORSION ON ANGLE ATTACHED TO STRINGER 26LT/26RT IN STA F2-349 TO FS 364 AT MAIN AVIONICS COMPARTMENT (E/E). CORRECTIVE ACTION: ANGLE ATTACHED TO STRINGER 26LT/26RT IN STA F2-349 TO FS 364 AT MAIN AVIONICS COMPARTMENT WAS REPLACED, PER CRJ900 SRM-51-42-20-001-001-A01. ANGLE ATTACHED TO STRINGER 26LT WAS CLEANED, PER CRJ900 SRM-51-26-00-001-001-A01.