As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED TO DEPARTURE DUE TO AN IDG FAULT, CIRCUIT BREAKER TRIPPED. EMERGENCY DECLARED AND LANDED WITHOUT INCIDENT. MAINTENANCE ACCOMPLISHED TROUBLESHOOTING IAW TSM 24-21-00-810-820 AND REPLACED RELAY 3XT. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK PER TSM 31-54-00. AIRCRAFT WAS GROUNDED.