As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE FLIGHT PILOT NOTICED LOW OIL PRESSURE LIGHT ILLUMINATED AND THE LEFT ENGINE OIL PRESSURE GAUGE DROPPING TO ZERO. PILOT PERFORMED ENGINE SHUTDOWN AND LANDING WAS UNEVENTFUL. POST INSPECTION REVEALED THAT THE ENGINE OIL COOLER WAS LEAKING FROM WITHIN THE FIN SURFACE AREA. REPLACED OIL COOLER, NO DEFECTS NOTED.