As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI, NR 1 DRIVE LIGHT ILLUMINATED AND STAYED ON. ACFT GROUNDED. FOUND OIL LEVEL LOW, SERVICED IDG AS PLACARDED REF MM 12-13-21. RAN ENGINE TWICE. ACCOMPLISHED OPS TEST FOR THE NR 1 IDG IAW AMM 24-11-00-700-802, VOLTS 115, FREQ'S. 399. INDICATION WITHIN NORMAL RANGE. NO FAULTS LOGGED ON CDU. NO PREVIOUS HISTORY LAST 60 DAYS.