As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
POWER CONTROL FOR RIGHT ENGINE WAS UNCONTROLLABLE. WITH ANY LITTLE MOVEMENT OF THE POWER LEVER, THE TORQUE WOULD FLUCTUATE UP TO 90 PERCENT TORQUE TO EITHER SIDE. REMOVED AND REPLACED RIGHT FCU IAW GMM AND PERFORMED GROUND RUNS. OK FOR SERVICE. (X)