As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - INFLIGHT PHX-ORD. CREW REPORTED AIRSPEED INDICATION SPLIT BETWEEN CAPTAIN AND FIRST OFFICERS AIRSPEED INDICATORS. EMERGENCY DECLARED FLIGHT DIVERTED DFW LANDED WITHOUT INCIDENT. REPLACED RIGHT PITOT AIR DATA MODULE. SYSTEM GROUND CHECK NORMAL OPERATION.