As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED RED DISPLAY TEMP MESSAGE ON BOTH PFDS (PRIMARY FLIGHT DISPLAY) EN ROUTE FROM GPT TO CLT. CREW DIVERTED TO MGM AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED, FOUND LEFT FLEX DUCT DISCONNECTED FROM DISPLAY COOLING PLENUM, RECONNECTED FLEX DUCT AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUALS. AIRCRAFT RELEASED FOR SERVICE.