What was found
LEFT ENGINE DID NOT SHUTDOWN WHEN CONDITION LEVER SELECTED TO FUEL OFF. FOUND THE PROPELLER PITCH CONTROL LINKAGE TO BE WORN AND REPLACED THE PCU.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT ENGINE DID NOT SHUTDOWN WHEN CONDITION LEVER SELECTED TO FUEL OFF. FOUND THE PROPELLER PITCH CONTROL LINKAGE TO BE WORN AND REPLACED THE PCU.