As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WEATHER RADAR WOULD NOT PAINT GROUND RETURNS AND BEGAN SPOKING AFTER TAKEOFF. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPLACED RADAR TRANSCEIVER AND INDICATOR WITH NO HELP. DEFERRED RADAR SYSTEM PER MEL 34-19 AND AIRCRAFT RETURNED TO SERVICE.