As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED DURING LEVEL OFF AT CRUISE ALTITUDE, THE NR 1 THROTTLE DID NOT RETARD - STAYED AT CLIMB THRUST SETTING RESULTING IN A LARGE THRUST DIFFERENTIAL MAINTENANCE PLACED THE AUTOTHROTTLE SYSTEM ON MEL AND SUBSEQUENTLY REMOVED AND REPLACED THE NR 1 AUTOTHROTTLE TORQUE SWITCH PER AMM 22-31-91-004-008. OPS CHECK OK PER AMM 22-31-00-715-056. CLEARED/REMOVED AUTOTHROTTLE MEL.