As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) COULD NOT SHUT DOWN LT ENGINE WITH FUEL LEVER. HAD TO PULL FIRE HANDLE. ALSO RT ENGINE VERY DIFFICULT TO SHUT OFF. CABLE MECHANISM FOUND STIFF DUE TO VERY COLD WEATHER. FUSELAGE TO PYLON BELLCRANK LUBRICATED AND BOTH SYSTEMS SERVICEABLE.