As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED THE IDLE WAS TOO LOW AT LIGHT OFF AND TOO HIGH AFTER ROLL-DOWN FROM FLIGHT IDLE. AFTER A LENGTHY PROCESS OF POKING, RIGGING, AND PRODDING, DISCOVERED THE SWITCH HOUSING AT THE END OF THE COLLECTIVE WAS WORN AT ITS INTERNAL STOPS. REPLACED UNIT AND RIGGED THE THROTTLE SYSTEM.