What was found
LEFT ENGINE THRUST LEVER FROZE IN FLIGHT AT APROXIMTELY 1.5 EPR, WHILE PASSING 30,000 FT, TURNED AUTOTHROTTLES OFF AND MADE NO DIFFERENCE. ABLE TO BREAK LOOSE WITH A SUBSEQUENT BIND, BROKE FREE AGAIN AND WAS OK THE REMAINDER OF THE FLIGHT. PERFORMED AN INSPECTION AND CHECK OF FUEL FLOW GOVERNOR, THE INPUT LEVER TORQUE IS WITHIN LIMITS IAW AMM 73-21-01-6. CHECKED LOWER ,INTERMEDIATE AND UPPER CONTROL BOX ASSEMBLIES IAW AMM 76-11-10-6, NO DEFECTS FOUND. PERFORMED A THROTTLE PUSH-PULL CHECK IAW 76-11-00-5, FOUND TO BE WITHIN LIMITS. PERFORMED AN AUTO THROTTLE TEST IAW 22-10-00-5, NO FAULTS. PERFORMED A NR 1 ENG IDLE RUN, OPS CHECKED NORMAL. THROTTLE MOVES FREE WITH NO BINDING.