As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN)AT TOP OF DESCENT THE LEFT THROTTLE JAMMED AT CRUISE POWER. WITH CONSIDERABLE FORCE IT WAS RETARDED ABOUT ONE WIDTH ABOVE RIGHT THROTTLE. POWER COULD NOT BE REDUCED TO IDLE. POST FLIGHT INSPECTION FOUND THE FUEL CONTROL BOX STIFF & RATCHETING. THE FUEL CONTROL BOX WAS REPLACED AND THE ENGINE CHECKED SERVICEABLE.