As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - CREW REPORTED NAVIGATION SYSTEM ISSUES DURING CLIMBOUT. EMERGENCY DECLARED FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. REPLACED NUMBERS ONE AND TWO DIGITAL FLIGHT GUIDANCE COMPUTERS AND NUMBERS ONE AND TWO INERTIAL REFERENCE UNIT COMPUTERS. SYSTEM GROUND CHECK NORMAL OPERATION.