As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT HAD NORMAL START AND TAKEOFF, AS AIRSPEED PICKED UP ACFT HAD UNCONTROLED ROLL TO RIGHT. FULL LEFT CYCLIC AND LEFT PEDDAL WOULD NOT FIX STRAIGHTEN ACFT OUT. WENT WITH ROLL TO RIGHT AND JUST MADE A BIG RIGHT TURN AND LANDED BACK AT PAD WITH NO PROBLEMS. ACFT RESPONDED BETTER AT LOWER POWER SETTINGS.