As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WX FAIL ANNUNCIATED DISPLAYED ON RADAR INFORMATION. GROUNDED - YES. TROUBLESHOT PER B737-800 FIM 34-43 TASK 803, FOUND BAD ANTENNA. REPLACED WEATHER RADAR ANTENNA PER B737-800 AMM 34-43-11 PG# 401, SYSTEM OPS CHECKED GOOD. ETOPS GROUND VERIFICATION WAS SUCCESSFUL.