As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND NR 1 DRIVE LIGHT OUT. WHILE ON GROUND POWER AND BATTERY POWER. ACFT GROUNDED. ACCOMPLISHED AMM TASK 24-21-00-700-803 FOR NR 1 ENGINE DRIVE, GENERATOR DRIVE LIGHT, REMAINED OFF DURING CHECK, VOLTS AND FREQS CHECK GOOD. AFTER SHUTDOWN NR 1 DRIVE ILLUMINATED NORMAL. GROUND VERIFICATION SUCCESSFUL. NO HISTORY 30 DAYS.