As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/O ARCDU SCREEN FLICKERED, THEN WENT BLANK WITH NO FAIL MESSAGE. CHECKLIST RAN AND SCREEN RETURNED, BUT WENT BLANK AGAIN SOON AFTER. CHECKLIST RAN AGAIN AND IT CAME BACK ON AND DID NOT REPEAT. MX REPLACED ARCDU. OPS CHECKS GOOD. ACFT RETURNED TO SERVICE.