What was found
AIRCRAFT AIR TURN BACK, WHEN AIRBORE RT ENGINE BECAME ACCELERATING, IT WASN`T ABLE TO CONTROL IT, THROTTLE AT IDLE AND ENGINE AT MAXIMUM TRUST AND ENGINE WAS SHUT DOWN. DURING REVISION WAS DETECTED WITHOUT RT CONTROL ACCELERATOR AND THE 53C CABLE WAS FOUND BROKEN. THE 53C CABLE WAS REPLACED IAW MM 76-1100, ALL CORRECT. DURING OVERNIGHT SERVICE BOTH ENGINES TRIM WERE CHECKED IAW MM 71-00-00, ALL CORRECT.(K)