As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER DEPARTING MMSL, ON CLIMB OUT PILOT EXPERIENCED SLIGHT VIBRATION. PULLING #1 THROTTLE BACK REDUCED VIBRATION. BATTERY 1 VOLTAGE WENT TO YELLOW, THEN BACK TO GREEN ELECTRICAL SYNOPTIC AMPS/VOLTS WERE FLUCTUATING. SHORTLY AFTER THE "GEN 1 OFF BUS" CAME UP. ENGINE WAS SHUT DOWN IN FLIGHT. AIRCRAFT DIVERTED TO MMSD.