As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER DUCTS REMOVAL IN REF NRC 00236, CORROSION ON FRAME FS969 BTW STGR 26L TO 26R AT INTERNAL FUSELAGE. FRAME FS969 BTW STGR 26L TO 26R AT INTERNAL FUSELAGE. WAS REPLACED PER CRJ 700 SRM 51-42-06-001-001-A01 . AND SRM 51-42-21-001-001-A01.