What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS AT 1200FT AGL(R) ENGINE THRUST REDUCED TO 34% (L) 70%, (L) FF 2000 (R) FF 4000, AUTO-THROTTLE DISCONNECTED. (R) ENGINE CONTROL LIGHT ILLUMINATED (R) ENG STABILIZED. (R) ENG CONTROL REMAINED ILLUMINATED UNTIL SHUTDOWN. MAINTENANCE REMOVED AND REPLACED RIGHT ENGINE LEFT VSV ACTUATOR BELL CRANK ASSEMBLY IAW EM 75-00-02. ACCOMPLISHED IDLE LEAK CHECK, ACTUATORS TEST AND TAKEOFF POWER ASSURANCE CHECK IAW AMM 71-00-003. OPS AND LEAK CHECKS GOOD.