As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RADAR SHOWS RETURNS IN SEVERE CLEAR PAINTING CELLS IN 20, 40, 80 MILE RANGES IN BOTH NORMAL & AUTO MODES. 80 & 160 RANGE AT ALTITUDE IS THE WORST. GROUNDED - YES. REMOVED & REPLACED WXR DRIVE UNIT REF AMM 34-43-11-000-802 & 34-43-11-400-801. ACCOMPLISHED WXR SYSTEM OPS TEST REF AMM 34-43-00-710-802-001. OPS CK GOOD.