As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WX RADAR PAINTING STRONG CONE-SHAPED RETURN IN CLEAR AIR. GROUNDED - YES. ACCOMPLISHED GVI EXTERNAL INSPECTION OF RADOME. NO DEFECTS NOTED. ACCOMPLISHED B737-900 FIM 34-43 TASK 801. OPS CK GOOD. ACCOMPLISHED WETHER RADAR SYSTEM OPERATIONAL TEST. OPS CK GOOD REF B737-900 AMM 34-43-00-710-802-001.