As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DUE IDG FAILURE AND UNABLE TO CONFIRM IDG DISCONNECTED CREW ELECTED TO RETURN TO DEPARTUE FOR OVER WEIGHT LANDING APRX 210.0 KG. ELEC IDG 1 OIL SYS FAULT. OIL PRESSURE LOW , IDG OIL TEMP RISING COULD NOT ASCERTAIN WETHER IDG WAS DISCONNECTED AFTER IDG P/B PUSHED. NR 1 IDG OIL CONTAMINATION SERVICED IAW AMM 24-21-00-612-815-A. NR 1 IDG REPLACED IAW AMM 24-21-51-400-804-A.