As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE WEATHER RADAR IS INTERMITTENTLY SHOWING ERRONEOUS RETURNS WHERE NO ACTUAL WEATHER EXISTS. THE ERRONEOUS RETURNS APPEAR APPROXIMATELY 120 MILES AHEAD OF THE AIRCRAFT POSITION AT 12 O'CLOCK. GROUNDED - YES. PERFORMED WEATHER RADAR OPERATIONAL AND SYSTEM TEST REF AMM 34-43-00. BOTH TESTS OK. UNABLE TO DUPLICATE DEFECT.