As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1337 - LGA - DURING PREFLIGHT, THE RIGHT LEVER ACTUATED THE ALTERNATE TRIM MOTOR WITH THE LEFT HALF IN THE NEUTRAL POSITION. THIS ALLOWED EITHER NOSE UP OR NOSE DOWN TRIM USING ONLY THE RIGHT HALF. T/S TO ALTERNATE LONGITUDINAL TRIM BRAKE CONTROL SWITCH. REMOVED AND REPLACED SWITCH S10-8 AS PER MM 27-40-09. OPS CHECK NORMAL, OK FOR SERVICE. (M)