As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JUST TURNED FINAL AND WENT TO PULL POWER BACK AND FOUND NO THROTTLE RESPONSE. PILOT WAS ABLE TO LAND USING MAG SWITCH TO ADD AND REDUCE POWER. UPON INSPECTION FOUND LOCK NUT MISSING FROM THROTTLE CONNECTION AND BOLT LAYING HALF OUT OF THROTTLE /TURBO ACTUATOR. (MS203651032C AND 22500531). INSPECTED BOLT FOUND NO DEFECTS. INSTALLED NEW BOLT, NUT, BEARING, AND WASHERS. OPS NORMAL.