As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RADAR IN WX AND WX +T MODS CONTINUOUSLY SHOWS RETURN LOBES 40 DEGREES LEFT AND RIGHT OF THE NOSE OF THE AIRCRAFT. RETURNS APPEAR SMALL AT LONG RANGE AND MUCH LARGER AT CLOSE RANGE. RADAR APPEARS TO CORRECTLY SHOW WEATHER. GROUNDED - YES. RESET SYSTEM AND PERFORMED GROUND FUNCTION CHECK PER B737-800 AMM 34-43-00-710-802-001, ETOPS GROUND FUNCTIONAL CHECK GOOD.