As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MEM - FLIGHT 2462, THE CREW REPORTED A DU4 OVERHEAT MESSAGE FOLLOWED BY THE UNIT GOING BLANK AND AN ACRID ELECTRICAL SMELL. THE AIRCRAFT LANDED AT MEM WITHOUT INCIDENT WHERE MAINTENANCE REMOVED AND REPLACED THE DU4, OPERATIONALLY CHECKED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.