As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH ONLY NR 1 ENGINE RUNNING. NR 1 ENGINE GENERATOR KICKED OFF LINE AND WOULD NOT RESET. OCCURRED DURING APU START CYCLE. NR 1 GCU POSTED IDG FAULT LIGHT IAW FIM 24-21/805 STEP F.(1), R & R NR 1 ENGINE IDG IAW AMM 24-11-11-500-801, 24-11-11-400-801 AND 24-11-00-700-802. PERFORMED OPS CHECK OF IDG IAW MM 24-11-00-700-802. OPS CHECKED GOOD.