As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WEATHER RADAR IN AUTO MODE SHOWS GROUND RETURNS AT 60 NM. SOLID GRND RETURNS DEPICTED PAST THAT. IN MANUAL MODE SHOWS GROUND RETURNS AT 80 NM WITH -1 DEGREE TILT. UNABLE TO TELL WHAT IS GROUND RETURN VS WX. GROUNDED - YES. PERFORMED OPERATIONAL TEST OF WX RADAR SYSTEM PER AMM 34-43-00-710-810-001. NO FAULTS FOUND.