As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THROTTLE SHAFT RECEIVED AS PART NUMBER 2543391. THE PART IS REALLY PART NUMBER 2543661. THE THROTTLE LEVER WAS MODIFIED AND THE THROTTLE LEVER AND THROTTLE SHAFT WERE REPLATED. UNABLE TO USE THIS PART. SENT TO CADORATH AEROSPACE FOR WARRANTY REPAIR.