As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TRAINING FLIGHT, LT THROTTLE FROZE. CREW SHUTDOWN ENGINE WITH MIXTURE AND LANDED UNEVENTFULLY. RESEARCH OF FLEET RECORDS SHOW THIS IS BECOMING COMMON ( 1 PRIOR INFLIGHT AND ONE DURING GROUND MX OPERATIONS IN THE PAST 2 MONTHS) TROUBLESHOOTING FINDS THE CABLE IS BINDING ON THE ENGINE END IN THE RIGID SHEATH AREA. REPLACEMENT OF CABLE CURES PROBLEM. MFG HAS BEEN CONTACTED.