As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON FRAME FS349 BTW STRG 26LH TO 26RH AT MAIN AVIONICS COMPARTMENT. CORROSION ON FRAME FS349 BTW STRG 26LH TO 26RH AT MAIN AVIONICS COMPARTMENT WAS EVALUATED OUT OF LIMITS AND FRAME FS349 WAS REPLACED PER CRJ900 SRM 51-10-06-001-001-A01,CRJ900 SRM 51-42-06-001-001-A01 AND CRJ900 SRM 51-42-21-001-001-A01