As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELEC GEN SYS L IDG HAS DISCONNECTED OR A PROTECTIVE TRIP OF THE GENERATOR CONTROL BREAKER HAS OCCURRED OR A PROTECTIVE TRIP OF THE BTB HAS OCCURRED. GCU ALSO SHOWS INTERNAL FAULT. REPLACED AND TESTED L-GCU (PRECAUTIONARY). IDG REPLACED AND ENGINE RUN CHECKS GOOD. NO LEAKS NOTED.