As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING, THE LEFT THRUST LEVER WOULD NOT MOVE FROM IDLE FOR ONE MINUTE. THE AIRPLANE WAS REMOVED FROM SERVICE (GROUNDED) AND THE ADJUSTMENT TEST PROCEDURE WAS PERFORMED IN ACCORDANCE WITH AMM 78-31-00. NO FAULTS WERE FOUND. THE CAUSE OF THE FAULT WITH THE LEFT THRUST LEVER WAS NOT DETERMINED.