As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALTERNATOR HAD IN-FLIGHT FAILURE RESULTING IN CLUTCH FAILURE. METAL FROM CLUTCH WENT INTO THE INTERNAL ENGINE AND CLOGGED OIL PUMP INLET SCREEN RESULTING IN ZERO OIL PRESSURE AND ENGINE SHUT DOWN. INSPECTION OF ALTERNATOR SHOWED DRIVESHAFT SEIZED FROM LACK OF LUBRICATION.