As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE IDG SIGHT GAUGE SHOWS NO OIL. ACFT GROUNDED. REMOVED THE NR 1 IDG SCAVENGE AND CHARGE FILTER IAW AMM TASK 24-11-41-000-801. INSTALLED NR 1 IDG SCAVENGE AND CHARGE FILTER AMM TASK 24-11-400-801. PERFORMED IDG OIL DRAIN AND REFILL IAW AMM 12-13-21-600-801. LEAK CHECKED THE NR 1 ENGINE AND RESERVICED TO FULL IAW AMM TASK 12-13-21-200-801 AND AMM 12-13-21-200-801.