As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOI FLIGHT NR 2300, NR 1 ARCDU FAIL MESSAGE APPEARED ON NR 1 ARCDU. RAN CHECKLIST AND SYSTEM RETURNED TO NORMAL. REPORTED BY CREW THAT THE NR 1 ARCDU IS OPERATING NORMALLY. NO FURTHER ACTION REQUIRED. AIRCRAFT OK FOR CONTINUED SERVICE.