As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE WITH RADAR SELECTED IN MANUAL TILT -Z NON EXISTENT BAND OF WX/CLUTTER FROM 60NM TO 80NM (GREEN) IN AUTO TILT 52ME BAND APPEARS AT 60NM TO 80NM EXCEPTIN RED. TILT APPEAR TO OPERATE NORMALLY ON APPROACH TO MAUI. GROUNDED - YES. VERIFIED TILT WAS DOWN MORE THAN INDICATED. REPLACED WEATHER RADAR CONTROL PANEL PER B737-800 AMM 34-43-91-400-801 OPS NORMAL.