What was found
ENGINES STAY IN HIGH IDLE. PROBLEM WAS CAUSED BY BOTH CHANNELS INOPERATIVE IN ZONE TEMP CONTROLLER. REPLACED ZONE TEMP CONTROLLER IAW AMM 21-63-34. OPS CHECKED GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ENGINES STAY IN HIGH IDLE. PROBLEM WAS CAUSED BY BOTH CHANNELS INOPERATIVE IN ZONE TEMP CONTROLLER. REPLACED ZONE TEMP CONTROLLER IAW AMM 21-63-34. OPS CHECKED GOOD.