As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JUST AFTER DEPARTURE FROM MILWAUKEE RADAR INDICATOR BLANKED OUT. RECYCLED UNIT OFF AND ON DISPLAY CAME YELLOW ONLY AND FLICKERED DISPLAY WAS SAME ALL THE WAY TO GATE. RETURNED TO MILWAUKEE. REPAIRED AND REPLACED WEATHER RADAR TRANSCEIVER SYSTEM OPS CHECK OK, REFERENCE MM 34-40.