As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH, THE NR 1 SOURCE OFF & GEN OFF BUSS LIGHTS ILLUMINATED. COMPLIED WITH QRH, LIGHTS REMAINED ILLUMINATED. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 IDG IAW AMM 24-11-11, AND 24-11-11-080-801. FILTERS WERE CLEAN FROM CONTAMINATION. OPS CHECK OF THE IDG WAS GOOD. NO LEAKS NOTED. OPS CHECKED IAW AMM 24-11-00-700-802.