As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON STRINGER 26RH BTW FS349.00 TO FS364.00 AT MAIN AVIONICS COMPARTMENT. EVALUATED,DUE TO DAMAGE EXCEED ALLOWABLE DAMAGE LIMITS ON STRINGER 26RH BTW FS349.00 TO FS364.00 AT MAIN AVIONICS COMPARTMENT PER CRJ-900 SRM 53-21-03-101-006-A04 AND REPLACED PER CRJ-900 SRM 51-42-06-001-001-A01 AND CRJ-900 SRM 51-42-21-001-001-A01.