As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WX RADAR DEPICTS A RETURN FROM THE NOSE TO END OF RANGE THAT IS CONSISTENTLY POINTED 20* DEGREES LEFT OF NOSE. GROUNDED - YES. PERFORMED SYSTEM RESET OF THE WXR SYSTEM PERFORMED WEATHER RADAR OPERATIONAL TEST IAW B737-9 AMM 34-41-00. OPS CK GOOD. ALL INDICATIONS WORK NORMAL. NO INBOUND FLIGHT DECK EFFECTS NOR INOP STATUS MSG.