As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5512, SDF TO CLE. AT FL220 THE CREW RECEIVED A DISPLAY COOL MESSAGE ON EICAS. THE QRH WAS FOLLOWED AND IT WAS DECIDED TO DIVERT TO IND, WHERE THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE PLACED THE SYSTEM ON MEL AND THE AIRCRAFT CONTINUED ON THE STANDBY SYSTEM. THE MEL WAS CLEARED IN CLE WHEN MAINTENANCE CLEANED DEBRIS FROM THE DISTRIBUTION DUCTS AND THE DISPLAY COOLING SYSTEM OPERATED NORMALLY.