As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE WOULD NOT SHUT DOWN WITH FUEL CONTROL IN OFF POSITION. CYCLED SWITCH AND ENGINE SHUT DOWN. ENGINE VALVE LIGHT REMAINED ON. AIRCRAFT WAS GROUNDED. REMOVED AND REPLACED LEFT MAIN ENGINE CONTROL IAW WC 73-94-02 AND 71-95-20. OPERATIONAL CHECKED GOOD.