As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, ELECTRIC GENERATOR DRIVE, RIGHT DRIVE LIGHT ILLUMINATED, AMBER DRIVE INDICATION. RETURNED TO DEPARTURE. EMERGENCY DECLARED, FLIGHT LANDED BUT WITHOUT INCIDENT. REPLACED THE RIGHT ELECTRICAL GENERATOR IAW AMM 24-11-01. AIRCRAFT WAS GROUNDED.