As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BEFORE FLIGHT, ON INITIAL ENGINE RUNS, IT WAS NOTICED THAT THE LEFT ALTERNATOR FAIL CAS MESSAGE WAS ILLUMINATED. UPON INSPECTION THE CREW REPORTED SMELLING SMOKE FUMES.THE ALTERNATOR WAS REMOVED AND REVEALED THAT AN INTERNAL SHORT HAD OCCURRED CAUSING THE FAILURE. THE ALTERNATOR WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE. ***THIS ALTERNATOR HAD BEEN IN SERVICE FOR 19.4 HOURS AND 12 CYCLES.***