As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: MAINTENANCE REPORTS BOTH AIRCRAFT THROTTLES REALLY HARD TO MOVE AND BINDING. FOUND SERVO MOTOR GEARBOX BINDING. REMOVED AND REPLACED SERVOMOTOR GEARBOX & SERVOMOTOR GENERATOR IAW AMM 22-32-01. THRUST LEVER LOADS FOR #1 & #2 ENG WITHIN LIMITS IAW AMM 76-11-06.