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. STATUS MSG01- LATCHED CLIMB MODE DEPENDENT; INTEGRATED DRIVE GENERATOR (L) FREQUENCY IS LOW. DB- GENERATOR CONTROL UNIT (L) MSG-2431631 LATCHED CL MODE. FOUND IDG OVER SERVICED 3 QUARTS. REPLACED IDG PER AMM. OPS AND INDICATIONS NORMAL NOW.