As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH STAB ON 0 DEGREE TILT, 0 BANK IN LEVEL FLT GROUND RETURN ON LEFT ONE-THIRD OF SCREEN. WITH 30 DEGREE BANK RIGHT, LEFT HALF OF SCREEN FILLED WITH GROUND RETURN. IN RIGHT TURN, LEFT HALF OF SCREEN FILLED WITH GROUND RETURN. FOUND ROLL GAIN AT 2-3 DEGREE HIGH. ADJUSTED ROLL GAIN. INSPECTED RADAR FOR MOISTURE. NONE FOUND, OPS CHECK PER MM.